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Finding the Fourth Proportional to 226.08, 339.21 and 72.03

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Solution

The fourth proportional to 226.08, 339.21 and 72.03 is: 108.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.08 : 339.21 = 72.03 : x
  2. Step 2: Convert to fraction form
    226.08/339.21 = 72.03/x
  3. Step 3: Cross multiply
    226.08x = 339.21 × 72.03
  4. Step 4: Simplify right side
    226.08x = 24,433.30
  5. Step 5: Solve for x
    x = 24,433.30/226.08
  6. Step 6: Final answer
    x = 108.07

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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.