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Finding the Third Proportional to 89,218 and 133,531

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Solution

The third proportional to 89,218 and 133,531 is: 199,853.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,218 : 133,531 = 133,531 : x
  2. Step 2: Convert to fraction form
    89,218/133,531 = 133,531/x
  3. Step 3: Cross multiply
    89,218x = 133,531 × 133,531
  4. Step 4: Simplify right side
    89,218x = 17,830,527,961
  5. Step 5: Solve for x
    x = 17,830,527,961/89,218
  6. Step 6: Final answer
    x = 199,853.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.