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Finding the Third Proportional to 90,489 and 192,996

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Solution

The third proportional to 90,489 and 192,996 is: 411,624.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,489 : 192,996 = 192,996 : x
  2. Step 2: Convert to fraction form
    90,489/192,996 = 192,996/x
  3. Step 3: Cross multiply
    90,489x = 192,996 × 192,996
  4. Step 4: Simplify right side
    90,489x = 37,247,456,016
  5. Step 5: Solve for x
    x = 37,247,456,016/90,489
  6. Step 6: Final answer
    x = 411,624.13

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.