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Finding the Fourth Proportional to 399,251.06, 550,933.37 and 227,123.22

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Solution

The fourth proportional to 399,251.06, 550,933.37 and 227,123.22 is: 313,411.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,251.06 : 550,933.37 = 227,123.22 : x
  2. Step 2: Convert to fraction form
    399,251.06/550,933.37 = 227,123.22/x
  3. Step 3: Cross multiply
    399,251.06x = 550,933.37 × 227,123.22
  4. Step 4: Simplify right side
    399,251.06x = 125,129,760,999.85
  5. Step 5: Solve for x
    x = 125,129,760,999.85/399,251.06
  6. Step 6: Final answer
    x = 313,411.22

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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.