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Finding the Fourth Proportional to 184.55, 254.72 and 118.18

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Solution

The fourth proportional to 184.55, 254.72 and 118.18 is: 163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.55 : 254.72 = 118.18 : x
  2. Step 2: Convert to fraction form
    184.55/254.72 = 118.18/x
  3. Step 3: Cross multiply
    184.55x = 254.72 × 118.18
  4. Step 4: Simplify right side
    184.55x = 30,102.47
  5. Step 5: Solve for x
    x = 30,102.47/184.55
  6. Step 6: Final answer
    x = 163.11

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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.