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Finding the Fourth Proportional to 184.75, 254.72 and 151.51

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Solution

The fourth proportional to 184.75, 254.72 and 151.51 is: 208.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.75 : 254.72 = 151.51 : x
  2. Step 2: Convert to fraction form
    184.75/254.72 = 151.51/x
  3. Step 3: Cross multiply
    184.75x = 254.72 × 151.51
  4. Step 4: Simplify right side
    184.75x = 38,593.56
  5. Step 5: Solve for x
    x = 38,593.56/184.75
  6. Step 6: Final answer
    x = 208.90

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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.