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Finding the Fourth Proportional to 271,402.60, 406,988.70 and 131,204.20

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Solution

The fourth proportional to 271,402.60, 406,988.70 and 131,204.20 is: 196,750.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,402.60 : 406,988.70 = 131,204.20 : x
  2. Step 2: Convert to fraction form
    271,402.60/406,988.70 = 131,204.20/x
  3. Step 3: Cross multiply
    271,402.60x = 406,988.70 × 131,204.20
  4. Step 4: Simplify right side
    271,402.60x = 53,398,626,792.54
  5. Step 5: Solve for x
    x = 53,398,626,792.54/271,402.60
  6. Step 6: Final answer
    x = 196,750.61

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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.