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Finding the Third Proportional to 292,385 and 437,387

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Solution

The third proportional to 292,385 and 437,387 is: 654,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,385 : 437,387 = 437,387 : x
  2. Step 2: Convert to fraction form
    292,385/437,387 = 437,387/x
  3. Step 3: Cross multiply
    292,385x = 437,387 × 437,387
  4. Step 4: Simplify right side
    292,385x = 191,307,387,769
  5. Step 5: Solve for x
    x = 191,307,387,769/292,385
  6. Step 6: Final answer
    x = 654,299.60

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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.