Home / 327,422.86-491,132.77-90,764.75

Finding the Fourth Proportional to 327,422.86, 491,132.77 and 90,764.75

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Solution

The fourth proportional to 327,422.86, 491,132.77 and 90,764.75 is: 136,146.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,422.86 : 491,132.77 = 90,764.75 : x
  2. Step 2: Convert to fraction form
    327,422.86/491,132.77 = 90,764.75/x
  3. Step 3: Cross multiply
    327,422.86x = 491,132.77 × 90,764.75
  4. Step 4: Simplify right side
    327,422.86x = 44,577,544,086.78
  5. Step 5: Solve for x
    x = 44,577,544,086.78/327,422.86
  6. Step 6: Final answer
    x = 136,146.71

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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.