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Finding the Fourth Proportional to 235.85, 353.64 and 126.03

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Solution

The fourth proportional to 235.85, 353.64 and 126.03 is: 188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.85 : 353.64 = 126.03 : x
  2. Step 2: Convert to fraction form
    235.85/353.64 = 126.03/x
  3. Step 3: Cross multiply
    235.85x = 353.64 × 126.03
  4. Step 4: Simplify right side
    235.85x = 44,569.25
  5. Step 5: Solve for x
    x = 44,569.25/235.85
  6. Step 6: Final answer
    x = 188.97

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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.