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Finding the Fourth Proportional to 227.13, 340.46 and 140.24

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Solution

The fourth proportional to 227.13, 340.46 and 140.24 is: 210.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.13 : 340.46 = 140.24 : x
  2. Step 2: Convert to fraction form
    227.13/340.46 = 140.24/x
  3. Step 3: Cross multiply
    227.13x = 340.46 × 140.24
  4. Step 4: Simplify right side
    227.13x = 47,744.23
  5. Step 5: Solve for x
    x = 47,744.23/227.13
  6. Step 6: Final answer
    x = 210.21

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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.