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Finding the Fourth Proportional to 329.29, 454.47 and 181.95

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Solution

The fourth proportional to 329.29, 454.47 and 181.95 is: 251.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.29 : 454.47 = 181.95 : x
  2. Step 2: Convert to fraction form
    329.29/454.47 = 181.95/x
  3. Step 3: Cross multiply
    329.29x = 454.47 × 181.95
  4. Step 4: Simplify right side
    329.29x = 82,690.82
  5. Step 5: Solve for x
    x = 82,690.82/329.29
  6. Step 6: Final answer
    x = 251.12

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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.