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Finding the Fourth Proportional to 144.70, 217.26 and 93.46

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Solution

The fourth proportional to 144.70, 217.26 and 93.46 is: 140.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.70 : 217.26 = 93.46 : x
  2. Step 2: Convert to fraction form
    144.70/217.26 = 93.46/x
  3. Step 3: Cross multiply
    144.70x = 217.26 × 93.46
  4. Step 4: Simplify right side
    144.70x = 20,305.12
  5. Step 5: Solve for x
    x = 20,305.12/144.70
  6. Step 6: Final answer
    x = 140.33

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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.