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Finding the Fourth Proportional to 227.52, 340.48 and 140.80

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Solution

The fourth proportional to 227.52, 340.48 and 140.80 is: 210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.52 : 340.48 = 140.80 : x
  2. Step 2: Convert to fraction form
    227.52/340.48 = 140.80/x
  3. Step 3: Cross multiply
    227.52x = 340.48 × 140.80
  4. Step 4: Simplify right side
    227.52x = 47,939.58
  5. Step 5: Solve for x
    x = 47,939.58/227.52
  6. Step 6: Final answer
    x = 210.70

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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.