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Finding the Fourth Proportional to 269.16, 371.23 and 247.10

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Solution

The fourth proportional to 269.16, 371.23 and 247.10 is: 340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.16 : 371.23 = 247.10 : x
  2. Step 2: Convert to fraction form
    269.16/371.23 = 247.10/x
  3. Step 3: Cross multiply
    269.16x = 371.23 × 247.10
  4. Step 4: Simplify right side
    269.16x = 91,731.94
  5. Step 5: Solve for x
    x = 91,731.94/269.16
  6. Step 6: Final answer
    x = 340.81

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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.