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Finding the Fourth Proportional to 367.12, 550.14 and 328.60

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Solution

The fourth proportional to 367.12, 550.14 and 328.60 is: 492.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.12 : 550.14 = 328.60 : x
  2. Step 2: Convert to fraction form
    367.12/550.14 = 328.60/x
  3. Step 3: Cross multiply
    367.12x = 550.14 × 328.60
  4. Step 4: Simplify right side
    367.12x = 180,776.00
  5. Step 5: Solve for x
    x = 180,776.00/367.12
  6. Step 6: Final answer
    x = 492.42

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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.