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Finding the Fourth Proportional to 325.95, 449.80 and 178.58

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Solution

The fourth proportional to 325.95, 449.80 and 178.58 is: 246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.95 : 449.80 = 178.58 : x
  2. Step 2: Convert to fraction form
    325.95/449.80 = 178.58/x
  3. Step 3: Cross multiply
    325.95x = 449.80 × 178.58
  4. Step 4: Simplify right side
    325.95x = 80,324.94
  5. Step 5: Solve for x
    x = 80,324.94/325.95
  6. Step 6: Final answer
    x = 246.43

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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.