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Finding the Fourth Proportional to 367.53, 551.39 and 107.52

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Solution

The fourth proportional to 367.53, 551.39 and 107.52 is: 161.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.53 : 551.39 = 107.52 : x
  2. Step 2: Convert to fraction form
    367.53/551.39 = 107.52/x
  3. Step 3: Cross multiply
    367.53x = 551.39 × 107.52
  4. Step 4: Simplify right side
    367.53x = 59,285.45
  5. Step 5: Solve for x
    x = 59,285.45/367.53
  6. Step 6: Final answer
    x = 161.31

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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.