Home / 327,423.86-491,134.27-90,765.75

Finding the Fourth Proportional to 327,423.86, 491,134.27 and 90,765.75

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Solution

The fourth proportional to 327,423.86, 491,134.27 and 90,765.75 is: 136,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,423.86 : 491,134.27 = 90,765.75 : x
  2. Step 2: Convert to fraction form
    327,423.86/491,134.27 = 90,765.75/x
  3. Step 3: Cross multiply
    327,423.86x = 491,134.27 × 90,765.75
  4. Step 4: Simplify right side
    327,423.86x = 44,578,170,367.25
  5. Step 5: Solve for x
    x = 44,578,170,367.25/327,423.86
  6. Step 6: Final answer
    x = 136,148.20

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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.