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Finding the Fourth Proportional to 222.35, 304.97 and 205.34

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Solution

The fourth proportional to 222.35, 304.97 and 205.34 is: 281.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.35 : 304.97 = 205.34 : x
  2. Step 2: Convert to fraction form
    222.35/304.97 = 205.34/x
  3. Step 3: Cross multiply
    222.35x = 304.97 × 205.34
  4. Step 4: Simplify right side
    222.35x = 62,619.99
  5. Step 5: Solve for x
    x = 62,619.99/222.35
  6. Step 6: Final answer
    x = 281.63

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.