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Finding the Fourth Proportional to 338.84, 467.56 and 191.45

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Solution

The fourth proportional to 338.84, 467.56 and 191.45 is: 264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.84 : 467.56 = 191.45 : x
  2. Step 2: Convert to fraction form
    338.84/467.56 = 191.45/x
  3. Step 3: Cross multiply
    338.84x = 467.56 × 191.45
  4. Step 4: Simplify right side
    338.84x = 89,514.36
  5. Step 5: Solve for x
    x = 89,514.36/338.84
  6. Step 6: Final answer
    x = 264.18

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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.