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Finding the Fourth Proportional to 367.90, 551.79 and 151.48

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Solution

The fourth proportional to 367.90, 551.79 and 151.48 is: 227.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.90 : 551.79 = 151.48 : x
  2. Step 2: Convert to fraction form
    367.90/551.79 = 151.48/x
  3. Step 3: Cross multiply
    367.90x = 551.79 × 151.48
  4. Step 4: Simplify right side
    367.90x = 83,585.15
  5. Step 5: Solve for x
    x = 83,585.15/367.90
  6. Step 6: Final answer
    x = 227.20

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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.