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Finding the Fourth Proportional to 227.16, 315.58 and 224.94

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Solution

The fourth proportional to 227.16, 315.58 and 224.94 is: 312.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.16 : 315.58 = 224.94 : x
  2. Step 2: Convert to fraction form
    227.16/315.58 = 224.94/x
  3. Step 3: Cross multiply
    227.16x = 315.58 × 224.94
  4. Step 4: Simplify right side
    227.16x = 70,986.57
  5. Step 5: Solve for x
    x = 70,986.57/227.16
  6. Step 6: Final answer
    x = 312.50

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.