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Finding the Fourth Proportional to 226.49, 339.46 and 149.43

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Solution

The fourth proportional to 226.49, 339.46 and 149.43 is: 223.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.49 : 339.46 = 149.43 : x
  2. Step 2: Convert to fraction form
    226.49/339.46 = 149.43/x
  3. Step 3: Cross multiply
    226.49x = 339.46 × 149.43
  4. Step 4: Simplify right side
    226.49x = 50,725.51
  5. Step 5: Solve for x
    x = 50,725.51/226.49
  6. Step 6: Final answer
    x = 223.96

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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.