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Finding the Fourth Proportional to 219.00, 330.18 and 216.27

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Solution

The fourth proportional to 219.00, 330.18 and 216.27 is: 326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.00 : 330.18 = 216.27 : x
  2. Step 2: Convert to fraction form
    219.00/330.18 = 216.27/x
  3. Step 3: Cross multiply
    219.00x = 330.18 × 216.27
  4. Step 4: Simplify right side
    219.00x = 71,407.22
  5. Step 5: Solve for x
    x = 71,407.22/219.00
  6. Step 6: Final answer
    x = 326.05

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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.