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Finding the Fourth Proportional to 204.48, 304.32 and 193.44

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Solution

The fourth proportional to 204.48, 304.32 and 193.44 is: 287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.48 : 304.32 = 193.44 : x
  2. Step 2: Convert to fraction form
    204.48/304.32 = 193.44/x
  3. Step 3: Cross multiply
    204.48x = 304.32 × 193.44
  4. Step 4: Simplify right side
    204.48x = 58,867.66
  5. Step 5: Solve for x
    x = 58,867.66/204.48
  6. Step 6: Final answer
    x = 287.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.