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Finding the Fourth Proportional to 219.44, 330.44 and 181.28

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Solution

The fourth proportional to 219.44, 330.44 and 181.28 is: 272.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.44 : 330.44 = 181.28 : x
  2. Step 2: Convert to fraction form
    219.44/330.44 = 181.28/x
  3. Step 3: Cross multiply
    219.44x = 330.44 × 181.28
  4. Step 4: Simplify right side
    219.44x = 59,902.16
  5. Step 5: Solve for x
    x = 59,902.16/219.44
  6. Step 6: Final answer
    x = 272.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.