Finding the Third Proportional to 623 and 641
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Solution
The third proportional to 623 and 641 is: 659.52
Step by Step Solution
- Step 1: Write the proportion equation
623 : 641 = 641 : x - Step 2: Convert to fraction form
623/641 = 641/x - Step 3: Cross multiply
623x = 641 × 641 - Step 4: Simplify right side
623x = 410,881 - Step 5: Solve for x
x = 410,881/623 - Step 6: Final answer
x = 659.52
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Why These Related Problems?
These problems maintain the same ratio (1.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.