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Finding the Fourth Proportional to 254.23, 349.95 and 219.37

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Solution

The fourth proportional to 254.23, 349.95 and 219.37 is: 301.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.23 : 349.95 = 219.37 : x
  2. Step 2: Convert to fraction form
    254.23/349.95 = 219.37/x
  3. Step 3: Cross multiply
    254.23x = 349.95 × 219.37
  4. Step 4: Simplify right side
    254.23x = 76,768.53
  5. Step 5: Solve for x
    x = 76,768.53/254.23
  6. Step 6: Final answer
    x = 301.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.