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Finding the Fourth Proportional to 411.01, 616.49 and 226.27

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Solution

The fourth proportional to 411.01, 616.49 and 226.27 is: 339.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.01 : 616.49 = 226.27 : x
  2. Step 2: Convert to fraction form
    411.01/616.49 = 226.27/x
  3. Step 3: Cross multiply
    411.01x = 616.49 × 226.27
  4. Step 4: Simplify right side
    411.01x = 139,489.36
  5. Step 5: Solve for x
    x = 139,489.36/411.01
  6. Step 6: Final answer
    x = 339.38

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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.