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Finding the Fourth Proportional to 239.41, 327.98 and 230.53

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Solution

The fourth proportional to 239.41, 327.98 and 230.53 is: 315.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.41 : 327.98 = 230.53 : x
  2. Step 2: Convert to fraction form
    239.41/327.98 = 230.53/x
  3. Step 3: Cross multiply
    239.41x = 327.98 × 230.53
  4. Step 4: Simplify right side
    239.41x = 75,609.23
  5. Step 5: Solve for x
    x = 75,609.23/239.41
  6. Step 6: Final answer
    x = 315.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.