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Finding the Fourth Proportional to 365.92, 548.37 and 311.24

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Solution

The fourth proportional to 365.92, 548.37 and 311.24 is: 466.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.92 : 548.37 = 311.24 : x
  2. Step 2: Convert to fraction form
    365.92/548.37 = 311.24/x
  3. Step 3: Cross multiply
    365.92x = 548.37 × 311.24
  4. Step 4: Simplify right side
    365.92x = 170,676.05
  5. Step 5: Solve for x
    x = 170,676.05/365.92
  6. Step 6: Final answer
    x = 466.43

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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.