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Finding the Third Proportional to 169,139.50 and 371,759

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Solution

The third proportional to 169,139.50 and 371,759 is: 817,105.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,139.50 : 371,759 = 371,759 : x
  2. Step 2: Convert to fraction form
    169,139.50/371,759 = 371,759/x
  3. Step 3: Cross multiply
    169,139.50x = 371,759 × 371,759
  4. Step 4: Simplify right side
    169,139.50x = 138,204,754,081
  5. Step 5: Solve for x
    x = 138,204,754,081/169,139.50
  6. Step 6: Final answer
    x = 817,105.14

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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.