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Finding the Third Proportional to 187,830 and 281,826

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Solution

The third proportional to 187,830 and 281,826 is: 422,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,830 : 281,826 = 281,826 : x
  2. Step 2: Convert to fraction form
    187,830/281,826 = 281,826/x
  3. Step 3: Cross multiply
    187,830x = 281,826 × 281,826
  4. Step 4: Simplify right side
    187,830x = 79,425,894,276
  5. Step 5: Solve for x
    x = 79,425,894,276/187,830
  6. Step 6: Final answer
    x = 422,860.53

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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.