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Finding the Third Proportional to 131,384 and 278,452

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Solution

The third proportional to 131,384 and 278,452 is: 590,144.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,384 : 278,452 = 278,452 : x
  2. Step 2: Convert to fraction form
    131,384/278,452 = 278,452/x
  3. Step 3: Cross multiply
    131,384x = 278,452 × 278,452
  4. Step 4: Simplify right side
    131,384x = 77,535,516,304
  5. Step 5: Solve for x
    x = 77,535,516,304/131,384
  6. Step 6: Final answer
    x = 590,144.28

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.