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Finding the Fourth Proportional to 269.29, 371.37 and 170.87

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Solution

The fourth proportional to 269.29, 371.37 and 170.87 is: 235.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.29 : 371.37 = 170.87 : x
  2. Step 2: Convert to fraction form
    269.29/371.37 = 170.87/x
  3. Step 3: Cross multiply
    269.29x = 371.37 × 170.87
  4. Step 4: Simplify right side
    269.29x = 63,455.99
  5. Step 5: Solve for x
    x = 63,455.99/269.29
  6. Step 6: Final answer
    x = 235.64

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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.