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Finding the Fourth Proportional to 215.92, 326.23 and 214

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Solution

The fourth proportional to 215.92, 326.23 and 214 is: 323.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.92 : 326.23 = 214 : x
  2. Step 2: Convert to fraction form
    215.92/326.23 = 214/x
  3. Step 3: Cross multiply
    215.92x = 326.23 × 214
  4. Step 4: Simplify right side
    215.92x = 69,813.22
  5. Step 5: Solve for x
    x = 69,813.22/215.92
  6. Step 6: Final answer
    x = 323.33

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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.