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Finding the Fourth Proportional to 227.25, 340.64 and 199.91

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Solution

The fourth proportional to 227.25, 340.64 and 199.91 is: 299.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.25 : 340.64 = 199.91 : x
  2. Step 2: Convert to fraction form
    227.25/340.64 = 199.91/x
  3. Step 3: Cross multiply
    227.25x = 340.64 × 199.91
  4. Step 4: Simplify right side
    227.25x = 68,094.64
  5. Step 5: Solve for x
    x = 68,094.64/227.25
  6. Step 6: Final answer
    x = 299.65

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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.