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Finding the Fourth Proportional to 269.52, 372.06 and 171.40

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Solution

The fourth proportional to 269.52, 372.06 and 171.40 is: 236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.52 : 372.06 = 171.40 : x
  2. Step 2: Convert to fraction form
    269.52/372.06 = 171.40/x
  3. Step 3: Cross multiply
    269.52x = 372.06 × 171.40
  4. Step 4: Simplify right side
    269.52x = 63,771.08
  5. Step 5: Solve for x
    x = 63,771.08/269.52
  6. Step 6: Final answer
    x = 236.61

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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.