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Finding the Fourth Proportional to 203.60, 281.00 and 133.65

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Solution

The fourth proportional to 203.60, 281.00 and 133.65 is: 184.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.60 : 281.00 = 133.65 : x
  2. Step 2: Convert to fraction form
    203.60/281.00 = 133.65/x
  3. Step 3: Cross multiply
    203.60x = 281.00 × 133.65
  4. Step 4: Simplify right side
    203.60x = 37,554.98
  5. Step 5: Solve for x
    x = 37,554.98/203.60
  6. Step 6: Final answer
    x = 184.46

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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.