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Finding the Fourth Proportional to 227.08, 340.19 and 140.18

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Solution

The fourth proportional to 227.08, 340.19 and 140.18 is: 210.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.08 : 340.19 = 140.18 : x
  2. Step 2: Convert to fraction form
    227.08/340.19 = 140.18/x
  3. Step 3: Cross multiply
    227.08x = 340.19 × 140.18
  4. Step 4: Simplify right side
    227.08x = 47,687.13
  5. Step 5: Solve for x
    x = 47,687.13/227.08
  6. Step 6: Final answer
    x = 210.01

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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.