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Finding the Third Proportional to 187,175.25 and 280,671.75

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Solution

The third proportional to 187,175.25 and 280,671.75 is: 420,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,175.25 : 280,671.75 = 280,671.75 : x
  2. Step 2: Convert to fraction form
    187,175.25/280,671.75 = 280,671.75/x
  3. Step 3: Cross multiply
    187,175.25x = 280,671.75 × 280,671.75
  4. Step 4: Simplify right side
    187,175.25x = 78,776,631,248.06
  5. Step 5: Solve for x
    x = 78,776,631,248.06/187,175.25
  6. Step 6: Final answer
    x = 420,870.98

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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.