Home / 352,183.50-528,358.18-280,407.88

Finding the Fourth Proportional to 352,183.50, 528,358.18 and 280,407.88

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Solution

The fourth proportional to 352,183.50, 528,358.18 and 280,407.88 is: 420,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,183.50 : 528,358.18 = 280,407.88 : x
  2. Step 2: Convert to fraction form
    352,183.50/528,358.18 = 280,407.88/x
  3. Step 3: Cross multiply
    352,183.50x = 528,358.18 × 280,407.88
  4. Step 4: Simplify right side
    352,183.50x = 148,155,797,619.65
  5. Step 5: Solve for x
    x = 148,155,797,619.65/352,183.50
  6. Step 6: Final answer
    x = 420,677.85

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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.