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Finding the Fourth Proportional to 399,093.13, 550,761.33 and 227,006.65

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Solution

The fourth proportional to 399,093.13, 550,761.33 and 227,006.65 is: 313,276.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,093.13 : 550,761.33 = 227,006.65 : x
  2. Step 2: Convert to fraction form
    399,093.13/550,761.33 = 227,006.65/x
  3. Step 3: Cross multiply
    399,093.13x = 550,761.33 × 227,006.65
  4. Step 4: Simplify right side
    399,093.13x = 125,026,484,472.84
  5. Step 5: Solve for x
    x = 125,026,484,472.84/399,093.13
  6. Step 6: Final answer
    x = 313,276.46

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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.