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Finding the Fourth Proportional to 254.48, 350.53 and 196.16

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Solution

The fourth proportional to 254.48, 350.53 and 196.16 is: 270.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.48 : 350.53 = 196.16 : x
  2. Step 2: Convert to fraction form
    254.48/350.53 = 196.16/x
  3. Step 3: Cross multiply
    254.48x = 350.53 × 196.16
  4. Step 4: Simplify right side
    254.48x = 68,757.72
  5. Step 5: Solve for x
    x = 68,757.72/254.48
  6. Step 6: Final answer
    x = 270.19

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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.