Finding the Third Proportional to 353 and 686
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Solution
The third proportional to 353 and 686 is: 1,333.13
Step by Step Solution
- Step 1: Write the proportion equation
353 : 686 = 686 : x - Step 2: Convert to fraction form
353/686 = 686/x - Step 3: Cross multiply
353x = 686 × 686 - Step 4: Simplify right side
353x = 470,596 - Step 5: Solve for x
x = 470,596/353 - Step 6: Final answer
x = 1,333.13
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These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.