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Finding the Fourth Proportional to 203.30, 305.73 and 169.47

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Solution

The fourth proportional to 203.30, 305.73 and 169.47 is: 254.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.30 : 305.73 = 169.47 : x
  2. Step 2: Convert to fraction form
    203.30/305.73 = 169.47/x
  3. Step 3: Cross multiply
    203.30x = 305.73 × 169.47
  4. Step 4: Simplify right side
    203.30x = 51,812.06
  5. Step 5: Solve for x
    x = 51,812.06/203.30
  6. Step 6: Final answer
    x = 254.86

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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.