Home / 327,939.88-491,560.38-187,403.56

Finding the Fourth Proportional to 327,939.88, 491,560.38 and 187,403.56

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Solution

The fourth proportional to 327,939.88, 491,560.38 and 187,403.56 is: 280,905.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,939.88 : 491,560.38 = 187,403.56 : x
  2. Step 2: Convert to fraction form
    327,939.88/491,560.38 = 187,403.56/x
  3. Step 3: Cross multiply
    327,939.88x = 491,560.38 × 187,403.56
  4. Step 4: Simplify right side
    327,939.88x = 92,120,165,166.95
  5. Step 5: Solve for x
    x = 92,120,165,166.95/327,939.88
  6. Step 6: Final answer
    x = 280,905.65

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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.