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Finding the Fourth Proportional to 349.61, 523.38 and 233.78

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Solution

The fourth proportional to 349.61, 523.38 and 233.78 is: 349.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.61 : 523.38 = 233.78 : x
  2. Step 2: Convert to fraction form
    349.61/523.38 = 233.78/x
  3. Step 3: Cross multiply
    349.61x = 523.38 × 233.78
  4. Step 4: Simplify right side
    349.61x = 122,353.16
  5. Step 5: Solve for x
    x = 122,353.16/349.61
  6. Step 6: Final answer
    x = 349.97

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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.