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Finding the Fourth Proportional to 481.60, 722.05 and 237.61

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Solution

The fourth proportional to 481.60, 722.05 and 237.61 is: 356.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.60 : 722.05 = 237.61 : x
  2. Step 2: Convert to fraction form
    481.60/722.05 = 237.61/x
  3. Step 3: Cross multiply
    481.60x = 722.05 × 237.61
  4. Step 4: Simplify right side
    481.60x = 171,565.58
  5. Step 5: Solve for x
    x = 171,565.58/481.60
  6. Step 6: Final answer
    x = 356.24

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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.