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Finding the Fourth Proportional to 271,087.71, 406,884.02 and 138,068.03

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Solution

The fourth proportional to 271,087.71, 406,884.02 and 138,068.03 is: 207,230.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,087.71 : 406,884.02 = 138,068.03 : x
  2. Step 2: Convert to fraction form
    271,087.71/406,884.02 = 138,068.03/x
  3. Step 3: Cross multiply
    271,087.71x = 406,884.02 × 138,068.03
  4. Step 4: Simplify right side
    271,087.71x = 56,177,672,355.12
  5. Step 5: Solve for x
    x = 56,177,672,355.12/271,087.71
  6. Step 6: Final answer
    x = 207,230.61

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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.