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Finding the Third Proportional to 79,940 and 170,957

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Solution

The third proportional to 79,940 and 170,957 is: 365,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,940 : 170,957 = 170,957 : x
  2. Step 2: Convert to fraction form
    79,940/170,957 = 170,957/x
  3. Step 3: Cross multiply
    79,940x = 170,957 × 170,957
  4. Step 4: Simplify right side
    79,940x = 29,226,295,849
  5. Step 5: Solve for x
    x = 29,226,295,849/79,940
  6. Step 6: Final answer
    x = 365,602.90

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.