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Finding the Fourth Proportional to 481.73, 665.13 and 371.03

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Solution

The fourth proportional to 481.73, 665.13 and 371.03 is: 512.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.73 : 665.13 = 371.03 : x
  2. Step 2: Convert to fraction form
    481.73/665.13 = 371.03/x
  3. Step 3: Cross multiply
    481.73x = 665.13 × 371.03
  4. Step 4: Simplify right side
    481.73x = 246,783.18
  5. Step 5: Solve for x
    x = 246,783.18/481.73
  6. Step 6: Final answer
    x = 512.29

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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.