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Finding the Fourth Proportional to 394.44, 590.46 and 249.72

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Solution

The fourth proportional to 394.44, 590.46 and 249.72 is: 373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.44 : 590.46 = 249.72 : x
  2. Step 2: Convert to fraction form
    394.44/590.46 = 249.72/x
  3. Step 3: Cross multiply
    394.44x = 590.46 × 249.72
  4. Step 4: Simplify right side
    394.44x = 147,449.67
  5. Step 5: Solve for x
    x = 147,449.67/394.44
  6. Step 6: Final answer
    x = 373.82

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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.