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Finding the Fourth Proportional to 269.50, 404.36 and 125.19

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Solution

The fourth proportional to 269.50, 404.36 and 125.19 is: 187.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.50 : 404.36 = 125.19 : x
  2. Step 2: Convert to fraction form
    269.50/404.36 = 125.19/x
  3. Step 3: Cross multiply
    269.50x = 404.36 × 125.19
  4. Step 4: Simplify right side
    269.50x = 50,621.83
  5. Step 5: Solve for x
    x = 50,621.83/269.50
  6. Step 6: Final answer
    x = 187.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.