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Finding the Third Proportional to 156,687 and 238,703

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Solution

The third proportional to 156,687 and 238,703 is: 363,649.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,687 : 238,703 = 238,703 : x
  2. Step 2: Convert to fraction form
    156,687/238,703 = 238,703/x
  3. Step 3: Cross multiply
    156,687x = 238,703 × 238,703
  4. Step 4: Simplify right side
    156,687x = 56,979,122,209
  5. Step 5: Solve for x
    x = 56,979,122,209/156,687
  6. Step 6: Final answer
    x = 363,649.33

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.