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Finding the Fourth Proportional to 239.66, 333.02 and 237.15

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Solution

The fourth proportional to 239.66, 333.02 and 237.15 is: 329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.66 : 333.02 = 237.15 : x
  2. Step 2: Convert to fraction form
    239.66/333.02 = 237.15/x
  3. Step 3: Cross multiply
    239.66x = 333.02 × 237.15
  4. Step 4: Simplify right side
    239.66x = 78,977.56
  5. Step 5: Solve for x
    x = 78,977.56/239.66
  6. Step 6: Final answer
    x = 329.54

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.