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Finding the Fourth Proportional to 327,597.98, 491,399.70 and 90,959.11

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Solution

The fourth proportional to 327,597.98, 491,399.70 and 90,959.11 is: 136,439.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,597.98 : 491,399.70 = 90,959.11 : x
  2. Step 2: Convert to fraction form
    327,597.98/491,399.70 = 90,959.11/x
  3. Step 3: Cross multiply
    327,597.98x = 491,399.70 × 90,959.11
  4. Step 4: Simplify right side
    327,597.98x = 44,697,279,366.27
  5. Step 5: Solve for x
    x = 44,697,279,366.27/327,597.98
  6. Step 6: Final answer
    x = 136,439.42

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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.