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Finding the Fourth Proportional to 367.74, 551.88 and 205.74

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Solution

The fourth proportional to 367.74, 551.88 and 205.74 is: 308.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.74 : 551.88 = 205.74 : x
  2. Step 2: Convert to fraction form
    367.74/551.88 = 205.74/x
  3. Step 3: Cross multiply
    367.74x = 551.88 × 205.74
  4. Step 4: Simplify right side
    367.74x = 113,543.79
  5. Step 5: Solve for x
    x = 113,543.79/367.74
  6. Step 6: Final answer
    x = 308.76

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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.