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Finding the Third Proportional to 71,872 and 156,350

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Solution

The third proportional to 71,872 and 156,350 is: 340,123.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,872 : 156,350 = 156,350 : x
  2. Step 2: Convert to fraction form
    71,872/156,350 = 156,350/x
  3. Step 3: Cross multiply
    71,872x = 156,350 × 156,350
  4. Step 4: Simplify right side
    71,872x = 24,445,322,500
  5. Step 5: Solve for x
    x = 24,445,322,500/71,872
  6. Step 6: Final answer
    x = 340,123.03

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.