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Finding the Fourth Proportional to 248.91, 375.23 and 219.34

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Solution

The fourth proportional to 248.91, 375.23 and 219.34 is: 330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.91 : 375.23 = 219.34 : x
  2. Step 2: Convert to fraction form
    248.91/375.23 = 219.34/x
  3. Step 3: Cross multiply
    248.91x = 375.23 × 219.34
  4. Step 4: Simplify right side
    248.91x = 82,302.95
  5. Step 5: Solve for x
    x = 82,302.95/248.91
  6. Step 6: Final answer
    x = 330.65

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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.