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Finding the Third Proportional to 204,676 and 315,750

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Solution

The third proportional to 204,676 and 315,750 is: 487,101.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,676 : 315,750 = 315,750 : x
  2. Step 2: Convert to fraction form
    204,676/315,750 = 315,750/x
  3. Step 3: Cross multiply
    204,676x = 315,750 × 315,750
  4. Step 4: Simplify right side
    204,676x = 99,698,062,500
  5. Step 5: Solve for x
    x = 99,698,062,500/204,676
  6. Step 6: Final answer
    x = 487,101.87

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.