1 m is equivalent to 3.281ft. A cube with an edge of 1.5ft has volume of?

1 m is equivalent to 3.281ft. A cube with an edge of 1.5ft has volume of?
3.281 ft = 1 m
Hence
1 ft = ##(1/3.281)## m
1 ft = 0.305 m (aprox)
1.5 ft = (##0.305 + 0.305/2##) m
1.5 ft = 0.4575 m
So edge of the cube is 0.4575 m
Volume of cube = ##0.4575^3## = ##0.0958 m^3##