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Finding the Fourth Proportional to 238.13, 326.52 and 214.72

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Solution

The fourth proportional to 238.13, 326.52 and 214.72 is: 294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.13 : 326.52 = 214.72 : x
  2. Step 2: Convert to fraction form
    238.13/326.52 = 214.72/x
  3. Step 3: Cross multiply
    238.13x = 326.52 × 214.72
  4. Step 4: Simplify right side
    238.13x = 70,110.37
  5. Step 5: Solve for x
    x = 70,110.37/238.13
  6. Step 6: Final answer
    x = 294.42

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.