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Finding the Fourth Proportional to 366.91, 550.17 and 135.76

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Solution

The fourth proportional to 366.91, 550.17 and 135.76 is: 203.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.91 : 550.17 = 135.76 : x
  2. Step 2: Convert to fraction form
    366.91/550.17 = 135.76/x
  3. Step 3: Cross multiply
    366.91x = 550.17 × 135.76
  4. Step 4: Simplify right side
    366.91x = 74,690.04
  5. Step 5: Solve for x
    x = 74,690.04/366.91
  6. Step 6: Final answer
    x = 203.56

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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.