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Finding the Fourth Proportional to 226.33, 339.87 and 153.43

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Solution

The fourth proportional to 226.33, 339.87 and 153.43 is: 230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.33 : 339.87 = 153.43 : x
  2. Step 2: Convert to fraction form
    226.33/339.87 = 153.43/x
  3. Step 3: Cross multiply
    226.33x = 339.87 × 153.43
  4. Step 4: Simplify right side
    226.33x = 52,146.25
  5. Step 5: Solve for x
    x = 52,146.25/226.33
  6. Step 6: Final answer
    x = 230.40

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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.