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Finding the Third Proportional to 71,403 and 156,817

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Solution

The third proportional to 71,403 and 156,817 is: 344,405.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,403 : 156,817 = 156,817 : x
  2. Step 2: Convert to fraction form
    71,403/156,817 = 156,817/x
  3. Step 3: Cross multiply
    71,403x = 156,817 × 156,817
  4. Step 4: Simplify right side
    71,403x = 24,591,571,489
  5. Step 5: Solve for x
    x = 24,591,571,489/71,403
  6. Step 6: Final answer
    x = 344,405.30

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.