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Finding the Fourth Proportional to 481.38, 722.03 and 237.81

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Solution

The fourth proportional to 481.38, 722.03 and 237.81 is: 356.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.38 : 722.03 = 237.81 : x
  2. Step 2: Convert to fraction form
    481.38/722.03 = 237.81/x
  3. Step 3: Cross multiply
    481.38x = 722.03 × 237.81
  4. Step 4: Simplify right side
    481.38x = 171,705.95
  5. Step 5: Solve for x
    x = 171,705.95/481.38
  6. Step 6: Final answer
    x = 356.70

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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.