Home / 322,396.05-482,445.90-280,733.70

Finding the Fourth Proportional to 322,396.05, 482,445.90 and 280,733.70

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Solution

The fourth proportional to 322,396.05, 482,445.90 and 280,733.70 is: 420,100.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,396.05 : 482,445.90 = 280,733.70 : x
  2. Step 2: Convert to fraction form
    322,396.05/482,445.90 = 280,733.70/x
  3. Step 3: Cross multiply
    322,396.05x = 482,445.90 × 280,733.70
  4. Step 4: Simplify right side
    322,396.05x = 135,438,822,556.83
  5. Step 5: Solve for x
    x = 135,438,822,556.83/322,396.05
  6. Step 6: Final answer
    x = 420,100.75

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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.