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Finding the Third Proportional to 156,940 and 239,082

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Solution

The third proportional to 156,940 and 239,082 is: 364,216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,940 : 239,082 = 239,082 : x
  2. Step 2: Convert to fraction form
    156,940/239,082 = 239,082/x
  3. Step 3: Cross multiply
    156,940x = 239,082 × 239,082
  4. Step 4: Simplify right side
    156,940x = 57,160,202,724
  5. Step 5: Solve for x
    x = 57,160,202,724/156,940
  6. Step 6: Final answer
    x = 364,216.92

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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.