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Finding the Fourth Proportional to 184.41, 254.75 and 129.13

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Solution

The fourth proportional to 184.41, 254.75 and 129.13 is: 178.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.41 : 254.75 = 129.13 : x
  2. Step 2: Convert to fraction form
    184.41/254.75 = 129.13/x
  3. Step 3: Cross multiply
    184.41x = 254.75 × 129.13
  4. Step 4: Simplify right side
    184.41x = 32,895.87
  5. Step 5: Solve for x
    x = 32,895.87/184.41
  6. Step 6: Final answer
    x = 178.38

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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.