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Finding the Fourth Proportional to 237.96, 330.66 and 234.90

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Solution

The fourth proportional to 237.96, 330.66 and 234.90 is: 326.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.96 : 330.66 = 234.90 : x
  2. Step 2: Convert to fraction form
    237.96/330.66 = 234.90/x
  3. Step 3: Cross multiply
    237.96x = 330.66 × 234.90
  4. Step 4: Simplify right side
    237.96x = 77,672.03
  5. Step 5: Solve for x
    x = 77,672.03/237.96
  6. Step 6: Final answer
    x = 326.41

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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.