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Finding the Third Proportional to 185,655 and 381,147

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Solution

The third proportional to 185,655 and 381,147 is: 782,489.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,655 : 381,147 = 381,147 : x
  2. Step 2: Convert to fraction form
    185,655/381,147 = 381,147/x
  3. Step 3: Cross multiply
    185,655x = 381,147 × 381,147
  4. Step 4: Simplify right side
    185,655x = 145,273,035,609
  5. Step 5: Solve for x
    x = 145,273,035,609/185,655
  6. Step 6: Final answer
    x = 782,489.22

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.