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Finding the Fourth Proportional to 276,028.70, 414,042.84 and 89,040.20

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Solution

The fourth proportional to 276,028.70, 414,042.84 and 89,040.20 is: 133,560.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,028.70 : 414,042.84 = 89,040.20 : x
  2. Step 2: Convert to fraction form
    276,028.70/414,042.84 = 89,040.20/x
  3. Step 3: Cross multiply
    276,028.70x = 414,042.84 × 89,040.20
  4. Step 4: Simplify right side
    276,028.70x = 36,866,455,211.95
  5. Step 5: Solve for x
    x = 36,866,455,211.95/276,028.70
  6. Step 6: Final answer
    x = 133,560.23

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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.