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Finding the Fourth Proportional to 228.08, 339.88 and 226.20

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Solution

The fourth proportional to 228.08, 339.88 and 226.20 is: 337.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.08 : 339.88 = 226.20 : x
  2. Step 2: Convert to fraction form
    228.08/339.88 = 226.20/x
  3. Step 3: Cross multiply
    228.08x = 339.88 × 226.20
  4. Step 4: Simplify right side
    228.08x = 76,880.86
  5. Step 5: Solve for x
    x = 76,880.86/228.08
  6. Step 6: Final answer
    x = 337.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.