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Finding the Fourth Proportional to 276,951.96, 415,427.94 and 66,589.91

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Solution

The fourth proportional to 276,951.96, 415,427.94 and 66,589.91 is: 99,884.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,951.96 : 415,427.94 = 66,589.91 : x
  2. Step 2: Convert to fraction form
    276,951.96/415,427.94 = 66,589.91/x
  3. Step 3: Cross multiply
    276,951.96x = 415,427.94 × 66,589.91
  4. Step 4: Simplify right side
    276,951.96x = 27,663,307,058.95
  5. Step 5: Solve for x
    x = 27,663,307,058.95/276,951.96
  6. Step 6: Final answer
    x = 99,884.86

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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.