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Finding the Fourth Proportional to 442.43, 611.15 and 332.73

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Solution

The fourth proportional to 442.43, 611.15 and 332.73 is: 459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.43 : 611.15 = 332.73 : x
  2. Step 2: Convert to fraction form
    442.43/611.15 = 332.73/x
  3. Step 3: Cross multiply
    442.43x = 611.15 × 332.73
  4. Step 4: Simplify right side
    442.43x = 203,346.28
  5. Step 5: Solve for x
    x = 203,346.28/442.43
  6. Step 6: Final answer
    x = 459.61

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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.