Question

In direct proportion _____ of two quantities is constant.

Answer 1

The appropriate response in the given blank is a ratio.

• The direct proportion is a mathematical tool that shows how two ratios are constant or identical to each other.
• The proportion consists of four mathematical values P, Q, R, and S.
• Their proportionality can be shown based on their ratio as follows:

    => P:Q:: R: S

    => where the terms P and S are called the extreme terms

    => Q and R are called the middle or mean terms

    => The principle of direct proportionality says that the ratio is constant.

    => $\frac{P}{Q}$ = $\frac{R}{S}$ = Constant

• It states that the value of all the numbers varies but their ratio remains constant.

• Hence, in direct proportion ratio of the two quantities is constant.

Answer 2

Answer:

Ratio

In ditect proportion ratio of two quantities is constant.