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Finding the Fourth Proportional to 295.70, 408.09 and 185.18

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Solution

The fourth proportional to 295.70, 408.09 and 185.18 is: 255.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.70 : 408.09 = 185.18 : x
  2. Step 2: Convert to fraction form
    295.70/408.09 = 185.18/x
  3. Step 3: Cross multiply
    295.70x = 408.09 × 185.18
  4. Step 4: Simplify right side
    295.70x = 75,568.07
  5. Step 5: Solve for x
    x = 75,568.07/295.70
  6. Step 6: Final answer
    x = 255.56

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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.