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Finding the Third Proportional to 187,436 and 299,781

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Solution

The third proportional to 187,436 and 299,781 is: 479,463.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,436 : 299,781 = 299,781 : x
  2. Step 2: Convert to fraction form
    187,436/299,781 = 299,781/x
  3. Step 3: Cross multiply
    187,436x = 299,781 × 299,781
  4. Step 4: Simplify right side
    187,436x = 89,868,647,961
  5. Step 5: Solve for x
    x = 89,868,647,961/187,436
  6. Step 6: Final answer
    x = 479,463.11

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.