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Finding the Fourth Proportional to 329.44, 494.16 and 248.65

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Solution

The fourth proportional to 329.44, 494.16 and 248.65 is: 372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.44 : 494.16 = 248.65 : x
  2. Step 2: Convert to fraction form
    329.44/494.16 = 248.65/x
  3. Step 3: Cross multiply
    329.44x = 494.16 × 248.65
  4. Step 4: Simplify right side
    329.44x = 122,872.88
  5. Step 5: Solve for x
    x = 122,872.88/329.44
  6. Step 6: Final answer
    x = 372.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.