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Finding the Fourth Proportional to 220.16, 330.60 and 179.84

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Solution

The fourth proportional to 220.16, 330.60 and 179.84 is: 270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.16 : 330.60 = 179.84 : x
  2. Step 2: Convert to fraction form
    220.16/330.60 = 179.84/x
  3. Step 3: Cross multiply
    220.16x = 330.60 × 179.84
  4. Step 4: Simplify right side
    220.16x = 59,455.10
  5. Step 5: Solve for x
    x = 59,455.10/220.16
  6. Step 6: Final answer
    x = 270.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.