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Finding the Fourth Proportional to 422.73, 582.03 and 348.93

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Solution

The fourth proportional to 422.73, 582.03 and 348.93 is: 480.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    422.73 : 582.03 = 348.93 : x
  2. Step 2: Convert to fraction form
    422.73/582.03 = 348.93/x
  3. Step 3: Cross multiply
    422.73x = 582.03 × 348.93
  4. Step 4: Simplify right side
    422.73x = 203,087.73
  5. Step 5: Solve for x
    x = 203,087.73/422.73
  6. Step 6: Final answer
    x = 480.42

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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.