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Finding the Fourth Proportional to 220.02, 303.78 and 164.88

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Solution

The fourth proportional to 220.02, 303.78 and 164.88 is: 227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.02 : 303.78 = 164.88 : x
  2. Step 2: Convert to fraction form
    220.02/303.78 = 164.88/x
  3. Step 3: Cross multiply
    220.02x = 303.78 × 164.88
  4. Step 4: Simplify right side
    220.02x = 50,087.25
  5. Step 5: Solve for x
    x = 50,087.25/220.02
  6. Step 6: Final answer
    x = 227.65

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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.