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Finding the Fourth Proportional to 226.18, 339.54 and 216.46

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Solution

The fourth proportional to 226.18, 339.54 and 216.46 is: 324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.18 : 339.54 = 216.46 : x
  2. Step 2: Convert to fraction form
    226.18/339.54 = 216.46/x
  3. Step 3: Cross multiply
    226.18x = 339.54 × 216.46
  4. Step 4: Simplify right side
    226.18x = 73,496.83
  5. Step 5: Solve for x
    x = 73,496.83/226.18
  6. Step 6: Final answer
    x = 324.95

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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.