Part 1
Find out the surface area of the larger solid
Remember that
If two figures are similar, then, the ratio of their surface areas is equal to the scale factor squared
In this problem
scale factor=1/2
so
Let
A ----> surface area of the smaller solid
B ----> surface area of the larger solid
we have that
(A/B)=[scale factor]^2
A=208 in2
substitute
208/B=(1/2)^2
208/B=1/4
B=208*4
B=832 in2
therefore
The surface area of the larger solid is 832 square inches
Part 2
Find out the volume of the larger solid
Remember that
If two figures are similar, then, the ratio of their volumes, is equal to the scale factor elevated to the cubic
so
Let
C ----> volume of the smaller solid
D ----> volume of the larger solid
we have that
C/D=[scale factor]^3
C=192 in3
substitute
192/D=(1/2)^3
192/D=1/8
D=192*8
D=1,536 in3
therefore
The volume of the larger solid is 1,536 cubic inches