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Finding the Third Proportional to 230,916 and 345,446

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Solution

The third proportional to 230,916 and 345,446 is: 516,780.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,916 : 345,446 = 345,446 : x
  2. Step 2: Convert to fraction form
    230,916/345,446 = 345,446/x
  3. Step 3: Cross multiply
    230,916x = 345,446 × 345,446
  4. Step 4: Simplify right side
    230,916x = 119,332,938,916
  5. Step 5: Solve for x
    x = 119,332,938,916/230,916
  6. Step 6: Final answer
    x = 516,780.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.