Question

find the mean proportional of 4 and 100

Answer 1

Answer:

10

Explanation:

_________________________

Mean Proportional:

If b is a mean Proportional

between a and c then

b² = ac

_________________________

Here ,

a=4 and c = 25

Let b be the mean Proportional between 4 and 25

=> b² = 4 × 25

=> b² = 100

=> b = √100

=> b = 10

Hence , the mean Proportional

of 4 and 25 is 10

••••

Answer 2

4:x=x:100

100×4=xsquare

root,100×4

10×2

=20