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Finding the Fourth Proportional to 481.92, 665.01 and 272.10

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Solution

The fourth proportional to 481.92, 665.01 and 272.10 is: 375.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.92 : 665.01 = 272.10 : x
  2. Step 2: Convert to fraction form
    481.92/665.01 = 272.10/x
  3. Step 3: Cross multiply
    481.92x = 665.01 × 272.10
  4. Step 4: Simplify right side
    481.92x = 180,949.22
  5. Step 5: Solve for x
    x = 180,949.22/481.92
  6. Step 6: Final answer
    x = 375.48

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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.