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Finding the Fourth Proportional to 382.82, 574.23 and 298.34

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Solution

The fourth proportional to 382.82, 574.23 and 298.34 is: 447.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.82 : 574.23 = 298.34 : x
  2. Step 2: Convert to fraction form
    382.82/574.23 = 298.34/x
  3. Step 3: Cross multiply
    382.82x = 574.23 × 298.34
  4. Step 4: Simplify right side
    382.82x = 171,315.78
  5. Step 5: Solve for x
    x = 171,315.78/382.82
  6. Step 6: Final answer
    x = 447.51

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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.