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Finding the Fourth Proportional to 552.12, 762.23 and 331.13

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Solution

The fourth proportional to 552.12, 762.23 and 331.13 is: 457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.12 : 762.23 = 331.13 : x
  2. Step 2: Convert to fraction form
    552.12/762.23 = 331.13/x
  3. Step 3: Cross multiply
    552.12x = 762.23 × 331.13
  4. Step 4: Simplify right side
    552.12x = 252,394.24
  5. Step 5: Solve for x
    x = 252,394.24/552.12
  6. Step 6: Final answer
    x = 457.14

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