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Finding the Fourth Proportional to 367.49, 550.45 and 251.39

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Solution

The fourth proportional to 367.49, 550.45 and 251.39 is: 376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.49 : 550.45 = 251.39 : x
  2. Step 2: Convert to fraction form
    367.49/550.45 = 251.39/x
  3. Step 3: Cross multiply
    367.49x = 550.45 × 251.39
  4. Step 4: Simplify right side
    367.49x = 138,375.19
  5. Step 5: Solve for x
    x = 138,375.19/367.49
  6. Step 6: Final answer
    x = 376.55

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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.