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Finding the Fourth Proportional to 184.92, 255.29 and 143.38

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Solution

The fourth proportional to 184.92, 255.29 and 143.38 is: 197.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.92 : 255.29 = 143.38 : x
  2. Step 2: Convert to fraction form
    184.92/255.29 = 143.38/x
  3. Step 3: Cross multiply
    184.92x = 255.29 × 143.38
  4. Step 4: Simplify right side
    184.92x = 36,603.12
  5. Step 5: Solve for x
    x = 36,603.12/184.92
  6. Step 6: Final answer
    x = 197.94

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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.