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Finding the Fourth Proportional to 184.81, 255.02 and 101.90

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Solution

The fourth proportional to 184.81, 255.02 and 101.90 is: 140.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.81 : 255.02 = 101.90 : x
  2. Step 2: Convert to fraction form
    184.81/255.02 = 101.90/x
  3. Step 3: Cross multiply
    184.81x = 255.02 × 101.90
  4. Step 4: Simplify right side
    184.81x = 25,985.14
  5. Step 5: Solve for x
    x = 25,985.14/184.81
  6. Step 6: Final answer
    x = 140.61

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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.