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Finding the Fourth Proportional to 394.32, 588.88 and 333.48

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Solution

The fourth proportional to 394.32, 588.88 and 333.48 is: 498.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.32 : 588.88 = 333.48 : x
  2. Step 2: Convert to fraction form
    394.32/588.88 = 333.48/x
  3. Step 3: Cross multiply
    394.32x = 588.88 × 333.48
  4. Step 4: Simplify right side
    394.32x = 196,379.70
  5. Step 5: Solve for x
    x = 196,379.70/394.32
  6. Step 6: Final answer
    x = 498.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.