Finding the Third Proportional to 354 and 656
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Solution
The third proportional to 354 and 656 is: 1,215.64
Step by Step Solution
- Step 1: Write the proportion equation
354 : 656 = 656 : x - Step 2: Convert to fraction form
354/656 = 656/x - Step 3: Cross multiply
354x = 656 × 656 - Step 4: Simplify right side
354x = 430,336 - Step 5: Solve for x
x = 430,336/354 - Step 6: Final answer
x = 1,215.64
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These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.