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Finding the Fourth Proportional to 392,366.52, 541,428.36 and 220,245.06

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Solution

The fourth proportional to 392,366.52, 541,428.36 and 220,245.06 is: 303,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,366.52 : 541,428.36 = 220,245.06 : x
  2. Step 2: Convert to fraction form
    392,366.52/541,428.36 = 220,245.06/x
  3. Step 3: Cross multiply
    392,366.52x = 541,428.36 × 220,245.06
  4. Step 4: Simplify right side
    392,366.52x = 119,246,921,633.90
  5. Step 5: Solve for x
    x = 119,246,921,633.90/392,366.52
  6. Step 6: Final answer
    x = 303,917.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.