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Finding the Fourth Proportional to 481.33, 721.28 and 237.32

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Solution

The fourth proportional to 481.33, 721.28 and 237.32 is: 355.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.33 : 721.28 = 237.32 : x
  2. Step 2: Convert to fraction form
    481.33/721.28 = 237.32/x
  3. Step 3: Cross multiply
    481.33x = 721.28 × 237.32
  4. Step 4: Simplify right side
    481.33x = 171,174.17
  5. Step 5: Solve for x
    x = 171,174.17/481.33
  6. Step 6: Final answer
    x = 355.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.