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Finding the Third Proportional to 72,629 and 156,725

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Solution

The third proportional to 72,629 and 156,725 is: 338,194.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,629 : 156,725 = 156,725 : x
  2. Step 2: Convert to fraction form
    72,629/156,725 = 156,725/x
  3. Step 3: Cross multiply
    72,629x = 156,725 × 156,725
  4. Step 4: Simplify right side
    72,629x = 24,562,725,625
  5. Step 5: Solve for x
    x = 24,562,725,625/72,629
  6. Step 6: Final answer
    x = 338,194.46

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.