Question

What does proportional relationship mean in math?

Answer 1

Meaning of proportional relationship:

The proportional relationship is a relationship between the two amounts such that the rate of change of those amounts is the same.

For example,

Let $x$ be the length of the shirt and $y$ be the width of the shirt.

Their rate of change in length and width is proportional such that the ratio $x\mathrm{and}\mathrm{y}$ is constant i.e. $\frac{x}{y}=k$

To increase the overall size of a shirt, its length and width increase proportionally.

Thus, The proportional relationship is a relationship between the two amounts such that the rate of change of those amounts is the same.