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Finding the Third Proportional to 129,469 and 282,941

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Solution

The third proportional to 129,469 and 282,941 is: 618,338.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,469 : 282,941 = 282,941 : x
  2. Step 2: Convert to fraction form
    129,469/282,941 = 282,941/x
  3. Step 3: Cross multiply
    129,469x = 282,941 × 282,941
  4. Step 4: Simplify right side
    129,469x = 80,055,609,481
  5. Step 5: Solve for x
    x = 80,055,609,481/129,469
  6. Step 6: Final answer
    x = 618,338.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.