Home / 327,222.71-490,333.05-220,209.95

Finding the Fourth Proportional to 327,222.71, 490,333.05 and 220,209.95

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Solution

The fourth proportional to 327,222.71, 490,333.05 and 220,209.95 is: 329,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,222.71 : 490,333.05 = 220,209.95 : x
  2. Step 2: Convert to fraction form
    327,222.71/490,333.05 = 220,209.95/x
  3. Step 3: Cross multiply
    327,222.71x = 490,333.05 × 220,209.95
  4. Step 4: Simplify right side
    327,222.71x = 107,976,216,423.85
  5. Step 5: Solve for x
    x = 107,976,216,423.85/327,222.71
  6. Step 6: Final answer
    x = 329,977.76

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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.