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Finding the Fourth Proportional to 329.16, 451.66 and 325.92

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Solution

The fourth proportional to 329.16, 451.66 and 325.92 is: 447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.16 : 451.66 = 325.92 : x
  2. Step 2: Convert to fraction form
    329.16/451.66 = 325.92/x
  3. Step 3: Cross multiply
    329.16x = 451.66 × 325.92
  4. Step 4: Simplify right side
    329.16x = 147,205.03
  5. Step 5: Solve for x
    x = 147,205.03/329.16
  6. Step 6: Final answer
    x = 447.21

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.