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Finding the Fourth Proportional to 277,010.54, 415,531.19 and 87,475.40

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Solution

The fourth proportional to 277,010.54, 415,531.19 and 87,475.40 is: 131,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,010.54 : 415,531.19 = 87,475.40 : x
  2. Step 2: Convert to fraction form
    277,010.54/415,531.19 = 87,475.40/x
  3. Step 3: Cross multiply
    277,010.54x = 415,531.19 × 87,475.40
  4. Step 4: Simplify right side
    277,010.54x = 36,348,755,198.76
  5. Step 5: Solve for x
    x = 36,348,755,198.76/277,010.54
  6. Step 6: Final answer
    x = 131,217.95

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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.