Aptitude
Introduction to Ratio and Propertion
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The ratio is used for comparing two quantities of the same kind. The ratio formula for two numbers says a and b is given by a : b or $\frac{a}{b}$.
When two or more such ratios are equal, they are said to be in proportion.
The concept of ratio and proportion is majorly based on ratios and fractions.
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The ratio refers to the relationship between the quantities of two or more objects and it indicates the amount of one object contained in the other.
This relation depicts how many times one quantity is equal to the other quantity.
It is the number that can be used to express one quantity as a fraction of the other ones. Ratios are denoted by the symbol of the colon (:).
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Proportion refers to a part, share, or number considered in relation to a whole, majorly a comparative relation.
Two equivalent ratios are always in proportion.
It is an equation or statement that is used to depict that the two ratios or fractions are equal.
It is a mathematical comparison between two numbers.
Accordingly, the ratios are said to be directly proportional to each other, if two sets of given numbers are increasing or decreasing in the same ratio.
- Proportions are denoted by the symbol (: :) or equal to (=).
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There are two types of Propertion.
Direct Proportion
Inverse Proportion
