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Finding the Fourth Proportional to 332.17, 458.53 and 238.95

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Solution

The fourth proportional to 332.17, 458.53 and 238.95 is: 329.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.17 : 458.53 = 238.95 : x
  2. Step 2: Convert to fraction form
    332.17/458.53 = 238.95/x
  3. Step 3: Cross multiply
    332.17x = 458.53 × 238.95
  4. Step 4: Simplify right side
    332.17x = 109,565.15
  5. Step 5: Solve for x
    x = 109,565.15/332.17
  6. Step 6: Final answer
    x = 329.85

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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.