Home / 272,139.35-408,217.22-225,121.58

Finding the Fourth Proportional to 272,139.35, 408,217.22 and 225,121.58

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Solution

The fourth proportional to 272,139.35, 408,217.22 and 225,121.58 is: 337,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,139.35 : 408,217.22 = 225,121.58 : x
  2. Step 2: Convert to fraction form
    272,139.35/408,217.22 = 225,121.58/x
  3. Step 3: Cross multiply
    272,139.35x = 408,217.22 × 225,121.58
  4. Step 4: Simplify right side
    272,139.35x = 91,898,504,757.93
  5. Step 5: Solve for x
    x = 91,898,504,757.93/272,139.35
  6. Step 6: Final answer
    x = 337,689.15

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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.