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Finding the Fourth Proportional to 301.38, 416.04 and 222.85

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Solution

The fourth proportional to 301.38, 416.04 and 222.85 is: 307.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.38 : 416.04 = 222.85 : x
  2. Step 2: Convert to fraction form
    301.38/416.04 = 222.85/x
  3. Step 3: Cross multiply
    301.38x = 416.04 × 222.85
  4. Step 4: Simplify right side
    301.38x = 92,713.40
  5. Step 5: Solve for x
    x = 92,713.40/301.38
  6. Step 6: Final answer
    x = 307.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.