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Finding the Fourth Proportional to 204.08, 305.28 and 169.89

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Solution

The fourth proportional to 204.08, 305.28 and 169.89 is: 254.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.08 : 305.28 = 169.89 : x
  2. Step 2: Convert to fraction form
    204.08/305.28 = 169.89/x
  3. Step 3: Cross multiply
    204.08x = 305.28 × 169.89
  4. Step 4: Simplify right side
    204.08x = 51,864.02
  5. Step 5: Solve for x
    x = 51,864.02/204.08
  6. Step 6: Final answer
    x = 254.14

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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.