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Finding the Fourth Proportional to 321.43, 481.70 and 184.27

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Solution

The fourth proportional to 321.43, 481.70 and 184.27 is: 276.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    321.43 : 481.70 = 184.27 : x
  2. Step 2: Convert to fraction form
    321.43/481.70 = 184.27/x
  3. Step 3: Cross multiply
    321.43x = 481.70 × 184.27
  4. Step 4: Simplify right side
    321.43x = 88,761.94
  5. Step 5: Solve for x
    x = 88,761.94/321.43
  6. Step 6: Final answer
    x = 276.15

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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.