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Finding the Fourth Proportional to 184.83, 254.91 and 143.31

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Solution

The fourth proportional to 184.83, 254.91 and 143.31 is: 197.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.83 : 254.91 = 143.31 : x
  2. Step 2: Convert to fraction form
    184.83/254.91 = 143.31/x
  3. Step 3: Cross multiply
    184.83x = 254.91 × 143.31
  4. Step 4: Simplify right side
    184.83x = 36,531.15
  5. Step 5: Solve for x
    x = 36,531.15/184.83
  6. Step 6: Final answer
    x = 197.65

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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.