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Finding the Fourth Proportional to 367, 550.15 and 135.83

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Solution

The fourth proportional to 367, 550.15 and 135.83 is: 203.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    367 : 550.15 = 135.83 : x
  2. Step 2: Convert to fraction form
    367/550.15 = 135.83/x
  3. Step 3: Cross multiply
    367x = 550.15 × 135.83
  4. Step 4: Simplify right side
    367x = 74,726.87
  5. Step 5: Solve for x
    x = 74,726.87/367
  6. Step 6: Final answer
    x = 203.62

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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.