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Finding the Fourth Proportional to 203.65, 281.01 and 119.59

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Solution

The fourth proportional to 203.65, 281.01 and 119.59 is: 165.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.65 : 281.01 = 119.59 : x
  2. Step 2: Convert to fraction form
    203.65/281.01 = 119.59/x
  3. Step 3: Cross multiply
    203.65x = 281.01 × 119.59
  4. Step 4: Simplify right side
    203.65x = 33,605.99
  5. Step 5: Solve for x
    x = 33,605.99/203.65
  6. Step 6: Final answer
    x = 165.02

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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.