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Finding the Fourth Proportional to 481.87, 665.30 and 371.14

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Solution

The fourth proportional to 481.87, 665.30 and 371.14 is: 512.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.87 : 665.30 = 371.14 : x
  2. Step 2: Convert to fraction form
    481.87/665.30 = 371.14/x
  3. Step 3: Cross multiply
    481.87x = 665.30 × 371.14
  4. Step 4: Simplify right side
    481.87x = 246,919.44
  5. Step 5: Solve for x
    x = 246,919.44/481.87
  6. Step 6: Final answer
    x = 512.42

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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.