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Finding the Fourth Proportional to 184.28, 254.28 and 105.60

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Solution

The fourth proportional to 184.28, 254.28 and 105.60 is: 145.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.28 : 254.28 = 105.60 : x
  2. Step 2: Convert to fraction form
    184.28/254.28 = 105.60/x
  3. Step 3: Cross multiply
    184.28x = 254.28 × 105.60
  4. Step 4: Simplify right side
    184.28x = 26,851.97
  5. Step 5: Solve for x
    x = 26,851.97/184.28
  6. Step 6: Final answer
    x = 145.71

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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.