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Finding the Fourth Proportional to 329.29, 454.39 and 181.90

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Solution

The fourth proportional to 329.29, 454.39 and 181.90 is: 251.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.29 : 454.39 = 181.90 : x
  2. Step 2: Convert to fraction form
    329.29/454.39 = 181.90/x
  3. Step 3: Cross multiply
    329.29x = 454.39 × 181.90
  4. Step 4: Simplify right side
    329.29x = 82,653.54
  5. Step 5: Solve for x
    x = 82,653.54/329.29
  6. Step 6: Final answer
    x = 251.01

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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.