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Finding the Third Proportional to 155,627 and 339,523

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Solution

The third proportional to 155,627 and 339,523 is: 740,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,627 : 339,523 = 339,523 : x
  2. Step 2: Convert to fraction form
    155,627/339,523 = 339,523/x
  3. Step 3: Cross multiply
    155,627x = 339,523 × 339,523
  4. Step 4: Simplify right side
    155,627x = 115,275,867,529
  5. Step 5: Solve for x
    x = 115,275,867,529/155,627
  6. Step 6: Final answer
    x = 740,718.95

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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.