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Finding the Third Proportional to 187,542 and 281,328

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Solution

The third proportional to 187,542 and 281,328 is: 422,014.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,542 : 281,328 = 281,328 : x
  2. Step 2: Convert to fraction form
    187,542/281,328 = 281,328/x
  3. Step 3: Cross multiply
    187,542x = 281,328 × 281,328
  4. Step 4: Simplify right side
    187,542x = 79,145,443,584
  5. Step 5: Solve for x
    x = 79,145,443,584/187,542
  6. Step 6: Final answer
    x = 422,014.50

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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.