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Finding the Fourth Proportional to 399,253.59, 550,936.85 and 227,125.76

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Solution

The fourth proportional to 399,253.59, 550,936.85 and 227,125.76 is: 313,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,253.59 : 550,936.85 = 227,125.76 : x
  2. Step 2: Convert to fraction form
    399,253.59/550,936.85 = 227,125.76/x
  3. Step 3: Cross multiply
    399,253.59x = 550,936.85 × 227,125.76
  4. Step 4: Simplify right side
    399,253.59x = 125,131,946,877.94
  5. Step 5: Solve for x
    x = 125,131,946,877.94/399,253.59
  6. Step 6: Final answer
    x = 313,414.71

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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.