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Finding the Third Proportional to 206,476 and 425,801

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Solution

The third proportional to 206,476 and 425,801 is: 878,099.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,476 : 425,801 = 425,801 : x
  2. Step 2: Convert to fraction form
    206,476/425,801 = 425,801/x
  3. Step 3: Cross multiply
    206,476x = 425,801 × 425,801
  4. Step 4: Simplify right side
    206,476x = 181,306,491,601
  5. Step 5: Solve for x
    x = 181,306,491,601/206,476
  6. Step 6: Final answer
    x = 878,099.59

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.