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Finding the Fourth Proportional to 223.22, 305.62 and 222.46

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Solution

The fourth proportional to 223.22, 305.62 and 222.46 is: 304.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.22 : 305.62 = 222.46 : x
  2. Step 2: Convert to fraction form
    223.22/305.62 = 222.46/x
  3. Step 3: Cross multiply
    223.22x = 305.62 × 222.46
  4. Step 4: Simplify right side
    223.22x = 67,988.23
  5. Step 5: Solve for x
    x = 67,988.23/223.22
  6. Step 6: Final answer
    x = 304.58

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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.