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Finding the Fourth Proportional to 392,373.52, 541,438.02 and 220,252.06

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Solution

The fourth proportional to 392,373.52, 541,438.02 and 220,252.06 is: 303,926.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,373.52 : 541,438.02 = 220,252.06 : x
  2. Step 2: Convert to fraction form
    392,373.52/541,438.02 = 220,252.06/x
  3. Step 3: Cross multiply
    392,373.52x = 541,438.02 × 220,252.06
  4. Step 4: Simplify right side
    392,373.52x = 119,252,839,267.32
  5. Step 5: Solve for x
    x = 119,252,839,267.32/392,373.52
  6. Step 6: Final answer
    x = 303,926.83

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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.