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Finding the Fourth Proportional to 311,168.75, 466,559.84 and 131,161.57

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Solution

The fourth proportional to 311,168.75, 466,559.84 and 131,161.57 is: 196,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,168.75 : 466,559.84 = 131,161.57 : x
  2. Step 2: Convert to fraction form
    311,168.75/466,559.84 = 131,161.57/x
  3. Step 3: Cross multiply
    311,168.75x = 466,559.84 × 131,161.57
  4. Step 4: Simplify right side
    311,168.75x = 61,194,719,291.14
  5. Step 5: Solve for x
    x = 61,194,719,291.14/311,168.75
  6. Step 6: Final answer
    x = 196,660.88

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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.