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Finding the Fourth Proportional to 226.91, 339.93 and 149.64

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Solution

The fourth proportional to 226.91, 339.93 and 149.64 is: 224.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.91 : 339.93 = 149.64 : x
  2. Step 2: Convert to fraction form
    226.91/339.93 = 149.64/x
  3. Step 3: Cross multiply
    226.91x = 339.93 × 149.64
  4. Step 4: Simplify right side
    226.91x = 50,869.23
  5. Step 5: Solve for x
    x = 50,869.23/226.91
  6. Step 6: Final answer
    x = 224.18

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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.