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Finding the Fourth Proportional to 349.07, 523.63 and 92.57

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Solution

The fourth proportional to 349.07, 523.63 and 92.57 is: 138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.07 : 523.63 = 92.57 : x
  2. Step 2: Convert to fraction form
    349.07/523.63 = 92.57/x
  3. Step 3: Cross multiply
    349.07x = 523.63 × 92.57
  4. Step 4: Simplify right side
    349.07x = 48,469.35
  5. Step 5: Solve for x
    x = 48,469.35/349.07
  6. Step 6: Final answer
    x = 138.85

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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.