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Finding the Fourth Proportional to 184.57, 254.73 and 122.47

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Solution

The fourth proportional to 184.57, 254.73 and 122.47 is: 169.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.57 : 254.73 = 122.47 : x
  2. Step 2: Convert to fraction form
    184.57/254.73 = 122.47/x
  3. Step 3: Cross multiply
    184.57x = 254.73 × 122.47
  4. Step 4: Simplify right side
    184.57x = 31,196.78
  5. Step 5: Solve for x
    x = 31,196.78/184.57
  6. Step 6: Final answer
    x = 169.02

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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.