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Finding the Fourth Proportional to 233.96, 349.24 and 217.92

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Solution

The fourth proportional to 233.96, 349.24 and 217.92 is: 325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.96 : 349.24 = 217.92 : x
  2. Step 2: Convert to fraction form
    233.96/349.24 = 217.92/x
  3. Step 3: Cross multiply
    233.96x = 349.24 × 217.92
  4. Step 4: Simplify right side
    233.96x = 76,106.38
  5. Step 5: Solve for x
    x = 76,106.38/233.96
  6. Step 6: Final answer
    x = 325.30

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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.