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Finding the Fourth Proportional to 271,033.96, 406,689.72 and 129,039.88

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Solution

The fourth proportional to 271,033.96, 406,689.72 and 129,039.88 is: 193,625.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,033.96 : 406,689.72 = 129,039.88 : x
  2. Step 2: Convert to fraction form
    271,033.96/406,689.72 = 129,039.88/x
  3. Step 3: Cross multiply
    271,033.96x = 406,689.72 × 129,039.88
  4. Step 4: Simplify right side
    271,033.96x = 52,479,192,666.03
  5. Step 5: Solve for x
    x = 52,479,192,666.03/271,033.96
  6. Step 6: Final answer
    x = 193,625.89

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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.