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Finding the Fourth Proportional to 481.19, 664.03 and 271.34

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Solution

The fourth proportional to 481.19, 664.03 and 271.34 is: 374.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.19 : 664.03 = 271.34 : x
  2. Step 2: Convert to fraction form
    481.19/664.03 = 271.34/x
  3. Step 3: Cross multiply
    481.19x = 664.03 × 271.34
  4. Step 4: Simplify right side
    481.19x = 180,177.41
  5. Step 5: Solve for x
    x = 180,177.41/481.19
  6. Step 6: Final answer
    x = 374.45

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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.