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Finding the Fourth Proportional to 228.18, 343.94 and 224.94

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Solution

The fourth proportional to 228.18, 343.94 and 224.94 is: 339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.18 : 343.94 = 224.94 : x
  2. Step 2: Convert to fraction form
    228.18/343.94 = 224.94/x
  3. Step 3: Cross multiply
    228.18x = 343.94 × 224.94
  4. Step 4: Simplify right side
    228.18x = 77,365.86
  5. Step 5: Solve for x
    x = 77,365.86/228.18
  6. Step 6: Final answer
    x = 339.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.