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Finding the Fourth Proportional to 325.94, 449.82 and 178.60

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Solution

The fourth proportional to 325.94, 449.82 and 178.60 is: 246.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.94 : 449.82 = 178.60 : x
  2. Step 2: Convert to fraction form
    325.94/449.82 = 178.60/x
  3. Step 3: Cross multiply
    325.94x = 449.82 × 178.60
  4. Step 4: Simplify right side
    325.94x = 80,337.85
  5. Step 5: Solve for x
    x = 80,337.85/325.94
  6. Step 6: Final answer
    x = 246.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.