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Finding the Fourth Proportional to 367.64, 551.09 and 194.51

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Solution

The fourth proportional to 367.64, 551.09 and 194.51 is: 291.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.64 : 551.09 = 194.51 : x
  2. Step 2: Convert to fraction form
    367.64/551.09 = 194.51/x
  3. Step 3: Cross multiply
    367.64x = 551.09 × 194.51
  4. Step 4: Simplify right side
    367.64x = 107,188.79
  5. Step 5: Solve for x
    x = 107,188.79/367.64
  6. Step 6: Final answer
    x = 291.56

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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.