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Finding the Fourth Proportional to 481.07, 721.38 and 237.50

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Solution

The fourth proportional to 481.07, 721.38 and 237.50 is: 356.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.07 : 721.38 = 237.50 : x
  2. Step 2: Convert to fraction form
    481.07/721.38 = 237.50/x
  3. Step 3: Cross multiply
    481.07x = 721.38 × 237.50
  4. Step 4: Simplify right side
    481.07x = 171,324.14
  5. Step 5: Solve for x
    x = 171,324.14/481.07
  6. Step 6: Final answer
    x = 356.14

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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.