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Finding the Fourth Proportional to 184.58, 254.61 and 140.90

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Solution

The fourth proportional to 184.58, 254.61 and 140.90 is: 194.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.58 : 254.61 = 140.90 : x
  2. Step 2: Convert to fraction form
    184.58/254.61 = 140.90/x
  3. Step 3: Cross multiply
    184.58x = 254.61 × 140.90
  4. Step 4: Simplify right side
    184.58x = 35,874.55
  5. Step 5: Solve for x
    x = 35,874.55/184.58
  6. Step 6: Final answer
    x = 194.36

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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.