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Finding the Fourth Proportional to 185.08, 255.33 and 111.35

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Solution

The fourth proportional to 185.08, 255.33 and 111.35 is: 153.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.08 : 255.33 = 111.35 : x
  2. Step 2: Convert to fraction form
    185.08/255.33 = 111.35/x
  3. Step 3: Cross multiply
    185.08x = 255.33 × 111.35
  4. Step 4: Simplify right side
    185.08x = 28,430.44
  5. Step 5: Solve for x
    x = 28,430.44/185.08
  6. Step 6: Final answer
    x = 153.61

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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.