Home / 281,517.62-421,981.17-131,631.57

Finding the Fourth Proportional to 281,517.62, 421,981.17 and 131,631.57

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Solution

The fourth proportional to 281,517.62, 421,981.17 and 131,631.57 is: 197,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,517.62 : 421,981.17 = 131,631.57 : x
  2. Step 2: Convert to fraction form
    281,517.62/421,981.17 = 131,631.57/x
  3. Step 3: Cross multiply
    281,517.62x = 421,981.17 × 131,631.57
  4. Step 4: Simplify right side
    281,517.62x = 55,546,043,917.54
  5. Step 5: Solve for x
    x = 55,546,043,917.54/281,517.62
  6. Step 6: Final answer
    x = 197,309.30

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1.5x scale

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.