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Finding the Third Proportional to 131,665 and 198,661

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Solution

The third proportional to 131,665 and 198,661 is: 299,747.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,665 : 198,661 = 198,661 : x
  2. Step 2: Convert to fraction form
    131,665/198,661 = 198,661/x
  3. Step 3: Cross multiply
    131,665x = 198,661 × 198,661
  4. Step 4: Simplify right side
    131,665x = 39,466,192,921
  5. Step 5: Solve for x
    x = 39,466,192,921/131,665
  6. Step 6: Final answer
    x = 299,747.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.