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Finding the Third Proportional to 140,139 and 217,593

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Solution

The third proportional to 140,139 and 217,593 is: 337,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,139 : 217,593 = 217,593 : x
  2. Step 2: Convert to fraction form
    140,139/217,593 = 217,593/x
  3. Step 3: Cross multiply
    140,139x = 217,593 × 217,593
  4. Step 4: Simplify right side
    140,139x = 47,346,713,649
  5. Step 5: Solve for x
    x = 47,346,713,649/140,139
  6. Step 6: Final answer
    x = 337,855.37

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.