Home / 327,901.28-491,869.55-103,279.30

Finding the Fourth Proportional to 327,901.28, 491,869.55 and 103,279.30

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Solution

The fourth proportional to 327,901.28, 491,869.55 and 103,279.30 is: 154,924.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,901.28 : 491,869.55 = 103,279.30 : x
  2. Step 2: Convert to fraction form
    327,901.28/491,869.55 = 103,279.30/x
  3. Step 3: Cross multiply
    327,901.28x = 491,869.55 × 103,279.30
  4. Step 4: Simplify right side
    327,901.28x = 50,799,941,069.24
  5. Step 5: Solve for x
    x = 50,799,941,069.24/327,901.28
  6. Step 6: Final answer
    x = 154,924.50

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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.