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Finding the Fourth Proportional to 254.16, 350.46 and 201.11

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Solution

The fourth proportional to 254.16, 350.46 and 201.11 is: 277.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.16 : 350.46 = 201.11 : x
  2. Step 2: Convert to fraction form
    254.16/350.46 = 201.11/x
  3. Step 3: Cross multiply
    254.16x = 350.46 × 201.11
  4. Step 4: Simplify right side
    254.16x = 70,479.75
  5. Step 5: Solve for x
    x = 70,479.75/254.16
  6. Step 6: Final answer
    x = 277.31

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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.