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Finding the Fourth Proportional to 271,269.60, 406,789.20 and 131,071.20

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Solution

The fourth proportional to 271,269.60, 406,789.20 and 131,071.20 is: 196,551.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,269.60 : 406,789.20 = 131,071.20 : x
  2. Step 2: Convert to fraction form
    271,269.60/406,789.20 = 131,071.20/x
  3. Step 3: Cross multiply
    271,269.60x = 406,789.20 × 131,071.20
  4. Step 4: Simplify right side
    271,269.60x = 53,318,348,591.04
  5. Step 5: Solve for x
    x = 53,318,348,591.04/271,269.60
  6. Step 6: Final answer
    x = 196,551.14

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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.