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Finding the Fourth Proportional to 222.60, 333.62 and 100.79

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Solution

The fourth proportional to 222.60, 333.62 and 100.79 is: 151.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.60 : 333.62 = 100.79 : x
  2. Step 2: Convert to fraction form
    222.60/333.62 = 100.79/x
  3. Step 3: Cross multiply
    222.60x = 333.62 × 100.79
  4. Step 4: Simplify right side
    222.60x = 33,625.56
  5. Step 5: Solve for x
    x = 33,625.56/222.60
  6. Step 6: Final answer
    x = 151.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.