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Finding the Fourth Proportional to 170.62, 235.47 and 126.94

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Solution

The fourth proportional to 170.62, 235.47 and 126.94 is: 175.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.62 : 235.47 = 126.94 : x
  2. Step 2: Convert to fraction form
    170.62/235.47 = 126.94/x
  3. Step 3: Cross multiply
    170.62x = 235.47 × 126.94
  4. Step 4: Simplify right side
    170.62x = 29,890.56
  5. Step 5: Solve for x
    x = 29,890.56/170.62
  6. Step 6: Final answer
    x = 175.19

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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.