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Finding the Third Proportional to 71,445 and 155,588

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Solution

The third proportional to 71,445 and 155,588 is: 338,828.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,445 : 155,588 = 155,588 : x
  2. Step 2: Convert to fraction form
    71,445/155,588 = 155,588/x
  3. Step 3: Cross multiply
    71,445x = 155,588 × 155,588
  4. Step 4: Simplify right side
    71,445x = 24,207,625,744
  5. Step 5: Solve for x
    x = 24,207,625,744/71,445
  6. Step 6: Final answer
    x = 338,828.83

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.