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Finding the Fourth Proportional to 155,344.80, 231,156.60 and 154,819.92

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Solution

The fourth proportional to 155,344.80, 231,156.60 and 154,819.92 is: 230,375.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,344.80 : 231,156.60 = 154,819.92 : x
  2. Step 2: Convert to fraction form
    155,344.80/231,156.60 = 154,819.92/x
  3. Step 3: Cross multiply
    155,344.80x = 231,156.60 × 154,819.92
  4. Step 4: Simplify right side
    155,344.80x = 35,787,646,319.47
  5. Step 5: Solve for x
    x = 35,787,646,319.47/155,344.80
  6. Step 6: Final answer
    x = 230,375.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.