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Finding the Fourth Proportional to 226.36, 339.34 and 89.38

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Solution

The fourth proportional to 226.36, 339.34 and 89.38 is: 133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.36 : 339.34 = 89.38 : x
  2. Step 2: Convert to fraction form
    226.36/339.34 = 89.38/x
  3. Step 3: Cross multiply
    226.36x = 339.34 × 89.38
  4. Step 4: Simplify right side
    226.36x = 30,328.07
  5. Step 5: Solve for x
    x = 30,328.07/226.36
  6. Step 6: Final answer
    x = 133.98

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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.