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Finding the Fourth Proportional to 422.26, 582.73 and 247.60

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Solution

The fourth proportional to 422.26, 582.73 and 247.60 is: 341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    422.26 : 582.73 = 247.60 : x
  2. Step 2: Convert to fraction form
    422.26/582.73 = 247.60/x
  3. Step 3: Cross multiply
    422.26x = 582.73 × 247.60
  4. Step 4: Simplify right side
    422.26x = 144,284.06
  5. Step 5: Solve for x
    x = 144,284.06/422.26
  6. Step 6: Final answer
    x = 341.70

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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.