Finding the Third Proportional to 338 and 398
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Solution
The third proportional to 338 and 398 is: 468.65
Step by Step Solution
- Step 1: Write the proportion equation
338 : 398 = 398 : x - Step 2: Convert to fraction form
338/398 = 398/x - Step 3: Cross multiply
338x = 398 × 398 - Step 4: Simplify right side
338x = 158,404 - Step 5: Solve for x
x = 158,404/338 - Step 6: Final answer
x = 468.65
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