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Finding the Fourth Proportional to 552.60, 762.52 and 325.49

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Solution

The fourth proportional to 552.60, 762.52 and 325.49 is: 449.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.60 : 762.52 = 325.49 : x
  2. Step 2: Convert to fraction form
    552.60/762.52 = 325.49/x
  3. Step 3: Cross multiply
    552.60x = 762.52 × 325.49
  4. Step 4: Simplify right side
    552.60x = 248,193.73
  5. Step 5: Solve for x
    x = 248,193.73/552.60
  6. Step 6: Final answer
    x = 449.14

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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.