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Finding the Third Proportional to 129,862 and 279,452

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Solution

The third proportional to 129,862 and 279,452 is: 601,356.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,862 : 279,452 = 279,452 : x
  2. Step 2: Convert to fraction form
    129,862/279,452 = 279,452/x
  3. Step 3: Cross multiply
    129,862x = 279,452 × 279,452
  4. Step 4: Simplify right side
    129,862x = 78,093,420,304
  5. Step 5: Solve for x
    x = 78,093,420,304/129,862
  6. Step 6: Final answer
    x = 601,356.98

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.