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Finding the Third Proportional to 129,536 and 280,576

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Solution

The third proportional to 129,536 and 280,576 is: 607,729.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,536 : 280,576 = 280,576 : x
  2. Step 2: Convert to fraction form
    129,536/280,576 = 280,576/x
  3. Step 3: Cross multiply
    129,536x = 280,576 × 280,576
  4. Step 4: Simplify right side
    129,536x = 78,722,891,776
  5. Step 5: Solve for x
    x = 78,722,891,776/129,536
  6. Step 6: Final answer
    x = 607,729.83

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.