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Finding the Fourth Proportional to 301.26, 415.65 and 170.26

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Solution

The fourth proportional to 301.26, 415.65 and 170.26 is: 234.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.26 : 415.65 = 170.26 : x
  2. Step 2: Convert to fraction form
    301.26/415.65 = 170.26/x
  3. Step 3: Cross multiply
    301.26x = 415.65 × 170.26
  4. Step 4: Simplify right side
    301.26x = 70,768.57
  5. Step 5: Solve for x
    x = 70,768.57/301.26
  6. Step 6: Final answer
    x = 234.91

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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.