Finding the Third Proportional to 624 and 665.50
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Solution
The third proportional to 624 and 665.50 is: 709.76
Step by Step Solution
- Step 1: Write the proportion equation
624 : 665.50 = 665.50 : x - Step 2: Convert to fraction form
624/665.50 = 665.50/x - Step 3: Cross multiply
624x = 665.50 × 665.50 - Step 4: Simplify right side
624x = 442,890.25 - Step 5: Solve for x
x = 442,890.25/624 - Step 6: Final answer
x = 709.76
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Why These Related Problems?
These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.