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Finding the Fourth Proportional to 325.52, 449.20 and 185.60

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Solution

The fourth proportional to 325.52, 449.20 and 185.60 is: 256.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.52 : 449.20 = 185.60 : x
  2. Step 2: Convert to fraction form
    325.52/449.20 = 185.60/x
  3. Step 3: Cross multiply
    325.52x = 449.20 × 185.60
  4. Step 4: Simplify right side
    325.52x = 83,371.52
  5. Step 5: Solve for x
    x = 83,371.52/325.52
  6. Step 6: Final answer
    x = 256.12

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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.