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Finding the Fourth Proportional to 226.51, 339.85 and 104.86

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Solution

The fourth proportional to 226.51, 339.85 and 104.86 is: 157.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.51 : 339.85 = 104.86 : x
  2. Step 2: Convert to fraction form
    226.51/339.85 = 104.86/x
  3. Step 3: Cross multiply
    226.51x = 339.85 × 104.86
  4. Step 4: Simplify right side
    226.51x = 35,636.64
  5. Step 5: Solve for x
    x = 35,636.64/226.51
  6. Step 6: Final answer
    x = 157.33

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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.