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Finding the Fourth Proportional to 367.74, 551.57 and 148.33

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Solution

The fourth proportional to 367.74, 551.57 and 148.33 is: 222.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.74 : 551.57 = 148.33 : x
  2. Step 2: Convert to fraction form
    367.74/551.57 = 148.33/x
  3. Step 3: Cross multiply
    367.74x = 551.57 × 148.33
  4. Step 4: Simplify right side
    367.74x = 81,814.38
  5. Step 5: Solve for x
    x = 81,814.38/367.74
  6. Step 6: Final answer
    x = 222.48

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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.