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Finding the Fourth Proportional to 235.36, 353.07 and 127.18

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Solution

The fourth proportional to 235.36, 353.07 and 127.18 is: 190.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.36 : 353.07 = 127.18 : x
  2. Step 2: Convert to fraction form
    235.36/353.07 = 127.18/x
  3. Step 3: Cross multiply
    235.36x = 353.07 × 127.18
  4. Step 4: Simplify right side
    235.36x = 44,903.44
  5. Step 5: Solve for x
    x = 44,903.44/235.36
  6. Step 6: Final answer
    x = 190.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.