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Finding the Fourth Proportional to 541,059.46, 810,951.49 and 221,013.88

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Solution

The fourth proportional to 541,059.46, 810,951.49 and 221,013.88 is: 331,260.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,059.46 : 810,951.49 = 221,013.88 : x
  2. Step 2: Convert to fraction form
    541,059.46/810,951.49 = 221,013.88/x
  3. Step 3: Cross multiply
    541,059.46x = 810,951.49 × 221,013.88
  4. Step 4: Simplify right side
    541,059.46x = 179,231,533,545.57
  5. Step 5: Solve for x
    x = 179,231,533,545.57/541,059.46
  6. Step 6: Final answer
    x = 331,260.33

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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.