Home / 327,198.50-490,808.68-90,521.36

Finding the Fourth Proportional to 327,198.50, 490,808.68 and 90,521.36

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Solution

The fourth proportional to 327,198.50, 490,808.68 and 90,521.36 is: 135,785.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,198.50 : 490,808.68 = 90,521.36 : x
  2. Step 2: Convert to fraction form
    327,198.50/490,808.68 = 90,521.36/x
  3. Step 3: Cross multiply
    327,198.50x = 490,808.68 × 90,521.36
  4. Step 4: Simplify right side
    327,198.50x = 44,428,669,213.40
  5. Step 5: Solve for x
    x = 44,428,669,213.40/327,198.50
  6. Step 6: Final answer
    x = 135,785.06

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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.