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Finding the Fourth Proportional to 227.52, 339.86 and 149.84

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Solution

The fourth proportional to 227.52, 339.86 and 149.84 is: 223.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.52 : 339.86 = 149.84 : x
  2. Step 2: Convert to fraction form
    227.52/339.86 = 149.84/x
  3. Step 3: Cross multiply
    227.52x = 339.86 × 149.84
  4. Step 4: Simplify right side
    227.52x = 50,924.62
  5. Step 5: Solve for x
    x = 50,924.62/227.52
  6. Step 6: Final answer
    x = 223.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.