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Finding the Fourth Proportional to 225.69, 335.67 and 222.85

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Solution

The fourth proportional to 225.69, 335.67 and 222.85 is: 331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.69 : 335.67 = 222.85 : x
  2. Step 2: Convert to fraction form
    225.69/335.67 = 222.85/x
  3. Step 3: Cross multiply
    225.69x = 335.67 × 222.85
  4. Step 4: Simplify right side
    225.69x = 74,804.06
  5. Step 5: Solve for x
    x = 74,804.06/225.69
  6. Step 6: Final answer
    x = 331.45

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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.