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Finding the Third Proportional to 131,068 and 280,811

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Solution

The third proportional to 131,068 and 280,811 is: 601,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,068 : 280,811 = 280,811 : x
  2. Step 2: Convert to fraction form
    131,068/280,811 = 280,811/x
  3. Step 3: Cross multiply
    131,068x = 280,811 × 280,811
  4. Step 4: Simplify right side
    131,068x = 78,854,817,721
  5. Step 5: Solve for x
    x = 78,854,817,721/131,068
  6. Step 6: Final answer
    x = 601,632.88

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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.