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Finding the Fourth Proportional to 226.54, 339.41 and 104.55

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Solution

The fourth proportional to 226.54, 339.41 and 104.55 is: 156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.54 : 339.41 = 104.55 : x
  2. Step 2: Convert to fraction form
    226.54/339.41 = 104.55/x
  3. Step 3: Cross multiply
    226.54x = 339.41 × 104.55
  4. Step 4: Simplify right side
    226.54x = 35,485.58
  5. Step 5: Solve for x
    x = 35,485.58/226.54
  6. Step 6: Final answer
    x = 156.64

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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.