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Finding the Third Proportional to 129,558 and 283,500

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Solution

The third proportional to 129,558 and 283,500 is: 620,357.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,558 : 283,500 = 283,500 : x
  2. Step 2: Convert to fraction form
    129,558/283,500 = 283,500/x
  3. Step 3: Cross multiply
    129,558x = 283,500 × 283,500
  4. Step 4: Simplify right side
    129,558x = 80,372,250,000
  5. Step 5: Solve for x
    x = 80,372,250,000/129,558
  6. Step 6: Final answer
    x = 620,357.29

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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.