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Finding the Fourth Proportional to 239.44, 330.34 and 195.96

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Solution

The fourth proportional to 239.44, 330.34 and 195.96 is: 270.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.44 : 330.34 = 195.96 : x
  2. Step 2: Convert to fraction form
    239.44/330.34 = 195.96/x
  3. Step 3: Cross multiply
    239.44x = 330.34 × 195.96
  4. Step 4: Simplify right side
    239.44x = 64,733.43
  5. Step 5: Solve for x
    x = 64,733.43/239.44
  6. Step 6: Final answer
    x = 270.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.