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Finding the Fourth Proportional to 394.29, 544.26 and 236.97

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Solution

The fourth proportional to 394.29, 544.26 and 236.97 is: 327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.29 : 544.26 = 236.97 : x
  2. Step 2: Convert to fraction form
    394.29/544.26 = 236.97/x
  3. Step 3: Cross multiply
    394.29x = 544.26 × 236.97
  4. Step 4: Simplify right side
    394.29x = 128,972.85
  5. Step 5: Solve for x
    x = 128,972.85/394.29
  6. Step 6: Final answer
    x = 327.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.