The formula of the volume of pyramid =1/3*h*base the volume of prism=base*h we know that the height of pyramid is 3 times more than the height of prism so that if the height of prism is a ==> the volume of prism is a*base the height of prism is 3a so that ==> the volume of pyramid is ==>1/3*3a*base=a*base The Answer of the ratio is 1/1