Question

Find the third proportional to rs 4 , rs 12 and for 1km 500m to 300m.

Answer 1

1 km = 1000 m

Therefore, 1500 m : 300 m :: 300 m : ?

1500/300=300/?

5= 300/?

?=300/5

?=60

Therefore the third proportional is 60 m