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Finding the Fourth Proportional to 271,572.84, 407,379.24 and 71,891.88

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Solution

The fourth proportional to 271,572.84, 407,379.24 and 71,891.88 is: 107,843.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,572.84 : 407,379.24 = 71,891.88 : x
  2. Step 2: Convert to fraction form
    271,572.84/407,379.24 = 71,891.88/x
  3. Step 3: Cross multiply
    271,572.84x = 407,379.24 × 71,891.88
  4. Step 4: Simplify right side
    271,572.84x = 29,287,259,436.57
  5. Step 5: Solve for x
    x = 29,287,259,436.57/271,572.84
  6. Step 6: Final answer
    x = 107,843.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.