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Finding the Fourth Proportional to 367,081.80, 550,458.67 and 142,367.55

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Solution

The fourth proportional to 367,081.80, 550,458.67 and 142,367.55 is: 213,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,081.80 : 550,458.67 = 142,367.55 : x
  2. Step 2: Convert to fraction form
    367,081.80/550,458.67 = 142,367.55/x
  3. Step 3: Cross multiply
    367,081.80x = 550,458.67 × 142,367.55
  4. Step 4: Simplify right side
    367,081.80x = 78,367,452,224.16
  5. Step 5: Solve for x
    x = 78,367,452,224.16/367,081.80
  6. Step 6: Final answer
    x = 213,487.71

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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.