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Finding the Fourth Proportional to 184.68, 254.91 and 114.78

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Solution

The fourth proportional to 184.68, 254.91 and 114.78 is: 158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.68 : 254.91 = 114.78 : x
  2. Step 2: Convert to fraction form
    184.68/254.91 = 114.78/x
  3. Step 3: Cross multiply
    184.68x = 254.91 × 114.78
  4. Step 4: Simplify right side
    184.68x = 29,259.96
  5. Step 5: Solve for x
    x = 29,259.96/184.68
  6. Step 6: Final answer
    x = 158.44

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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.