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Finding the Fourth Proportional to 338.88, 467.67 and 198.96

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Solution

The fourth proportional to 338.88, 467.67 and 198.96 is: 274.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.88 : 467.67 = 198.96 : x
  2. Step 2: Convert to fraction form
    338.88/467.67 = 198.96/x
  3. Step 3: Cross multiply
    338.88x = 467.67 × 198.96
  4. Step 4: Simplify right side
    338.88x = 93,046.62
  5. Step 5: Solve for x
    x = 93,046.62/338.88
  6. Step 6: Final answer
    x = 274.57

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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.