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Finding the Fourth Proportional to 222.03, 304.40 and 220.14

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Solution

The fourth proportional to 222.03, 304.40 and 220.14 is: 301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.03 : 304.40 = 220.14 : x
  2. Step 2: Convert to fraction form
    222.03/304.40 = 220.14/x
  3. Step 3: Cross multiply
    222.03x = 304.40 × 220.14
  4. Step 4: Simplify right side
    222.03x = 67,011.17
  5. Step 5: Solve for x
    x = 67,011.17/222.03
  6. Step 6: Final answer
    x = 301.81

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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.