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Finding the Fourth Proportional to 367.31, 550.33 and 222.72

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Solution

The fourth proportional to 367.31, 550.33 and 222.72 is: 333.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.31 : 550.33 = 222.72 : x
  2. Step 2: Convert to fraction form
    367.31/550.33 = 222.72/x
  3. Step 3: Cross multiply
    367.31x = 550.33 × 222.72
  4. Step 4: Simplify right side
    367.31x = 122,569.50
  5. Step 5: Solve for x
    x = 122,569.50/367.31
  6. Step 6: Final answer
    x = 333.69

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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.