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Finding the Fourth Proportional to 367.11, 551.09 and 290.33

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Solution

The fourth proportional to 367.11, 551.09 and 290.33 is: 435.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.11 : 551.09 = 290.33 : x
  2. Step 2: Convert to fraction form
    367.11/551.09 = 290.33/x
  3. Step 3: Cross multiply
    367.11x = 551.09 × 290.33
  4. Step 4: Simplify right side
    367.11x = 159,997.96
  5. Step 5: Solve for x
    x = 159,997.96/367.11
  6. Step 6: Final answer
    x = 435.83

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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.