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Finding the Fourth Proportional to 184.93, 255.21 and 102.05

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Solution

The fourth proportional to 184.93, 255.21 and 102.05 is: 140.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.93 : 255.21 = 102.05 : x
  2. Step 2: Convert to fraction form
    184.93/255.21 = 102.05/x
  3. Step 3: Cross multiply
    184.93x = 255.21 × 102.05
  4. Step 4: Simplify right side
    184.93x = 26,042.90
  5. Step 5: Solve for x
    x = 26,042.90/184.93
  6. Step 6: Final answer
    x = 140.83

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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.