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Finding the Fourth Proportional to 367.02, 550.53 and 135.90

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Solution

The fourth proportional to 367.02, 550.53 and 135.90 is: 203.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.02 : 550.53 = 135.90 : x
  2. Step 2: Convert to fraction form
    367.02/550.53 = 135.90/x
  3. Step 3: Cross multiply
    367.02x = 550.53 × 135.90
  4. Step 4: Simplify right side
    367.02x = 74,817.03
  5. Step 5: Solve for x
    x = 74,817.03/367.02
  6. Step 6: Final answer
    x = 203.85

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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.