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Finding the Fourth Proportional to 225.08, 334.88 and 213.56

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Solution

The fourth proportional to 225.08, 334.88 and 213.56 is: 317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.08 : 334.88 = 213.56 : x
  2. Step 2: Convert to fraction form
    225.08/334.88 = 213.56/x
  3. Step 3: Cross multiply
    225.08x = 334.88 × 213.56
  4. Step 4: Simplify right side
    225.08x = 71,516.97
  5. Step 5: Solve for x
    x = 71,516.97/225.08
  6. Step 6: Final answer
    x = 317.74

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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.