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Finding the Fourth Proportional to 150.20, 206.83 and 119.02

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Solution

The fourth proportional to 150.20, 206.83 and 119.02 is: 163.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.20 : 206.83 = 119.02 : x
  2. Step 2: Convert to fraction form
    150.20/206.83 = 119.02/x
  3. Step 3: Cross multiply
    150.20x = 206.83 × 119.02
  4. Step 4: Simplify right side
    150.20x = 24,616.91
  5. Step 5: Solve for x
    x = 24,616.91/150.20
  6. Step 6: Final answer
    x = 163.89

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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.