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Finding the Fourth Proportional to 227.76, 343.77 and 227.76

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Solution

The fourth proportional to 227.76, 343.77 and 227.76 is: 343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.76 : 343.77 = 227.76 : x
  2. Step 2: Convert to fraction form
    227.76/343.77 = 227.76/x
  3. Step 3: Cross multiply
    227.76x = 343.77 × 227.76
  4. Step 4: Simplify right side
    227.76x = 78,297.06
  5. Step 5: Solve for x
    x = 78,297.06/227.76
  6. Step 6: Final answer
    x = 343.77

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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.