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Finding the Fourth Proportional to 481.00, 663.63 and 271.15

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Solution

The fourth proportional to 481.00, 663.63 and 271.15 is: 374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.00 : 663.63 = 271.15 : x
  2. Step 2: Convert to fraction form
    481.00/663.63 = 271.15/x
  3. Step 3: Cross multiply
    481.00x = 663.63 × 271.15
  4. Step 4: Simplify right side
    481.00x = 179,940.63
  5. Step 5: Solve for x
    x = 179,940.63/481.00
  6. Step 6: Final answer
    x = 374.10

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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.