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Finding the Fourth Proportional to 204.42, 280.67 and 192.58

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Solution

The fourth proportional to 204.42, 280.67 and 192.58 is: 264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.42 : 280.67 = 192.58 : x
  2. Step 2: Convert to fraction form
    204.42/280.67 = 192.58/x
  3. Step 3: Cross multiply
    204.42x = 280.67 × 192.58
  4. Step 4: Simplify right side
    204.42x = 54,049.76
  5. Step 5: Solve for x
    x = 54,049.76/204.42
  6. Step 6: Final answer
    x = 264.40

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.