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Finding the Fourth Proportional to 338.86, 467.56 and 191.44

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Solution

The fourth proportional to 338.86, 467.56 and 191.44 is: 264.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.86 : 467.56 = 191.44 : x
  2. Step 2: Convert to fraction form
    338.86/467.56 = 191.44/x
  3. Step 3: Cross multiply
    338.86x = 467.56 × 191.44
  4. Step 4: Simplify right side
    338.86x = 89,509.69
  5. Step 5: Solve for x
    x = 89,509.69/338.86
  6. Step 6: Final answer
    x = 264.15

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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.