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Finding the Fourth Proportional to 239.38, 360.89 and 226.06

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Solution

The fourth proportional to 239.38, 360.89 and 226.06 is: 340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.38 : 360.89 = 226.06 : x
  2. Step 2: Convert to fraction form
    239.38/360.89 = 226.06/x
  3. Step 3: Cross multiply
    239.38x = 360.89 × 226.06
  4. Step 4: Simplify right side
    239.38x = 81,582.79
  5. Step 5: Solve for x
    x = 81,582.79/239.38
  6. Step 6: Final answer
    x = 340.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.