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Finding the Third Proportional to 90,639 and 151,551

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Solution

The third proportional to 90,639 and 151,551 is: 253,397.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,639 : 151,551 = 151,551 : x
  2. Step 2: Convert to fraction form
    90,639/151,551 = 151,551/x
  3. Step 3: Cross multiply
    90,639x = 151,551 × 151,551
  4. Step 4: Simplify right side
    90,639x = 22,967,705,601
  5. Step 5: Solve for x
    x = 22,967,705,601/90,639
  6. Step 6: Final answer
    x = 253,397.61

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.