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Finding the Fourth Proportional to 205.34, 281.48 and 204.93

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Solution

The fourth proportional to 205.34, 281.48 and 204.93 is: 280.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.34 : 281.48 = 204.93 : x
  2. Step 2: Convert to fraction form
    205.34/281.48 = 204.93/x
  3. Step 3: Cross multiply
    205.34x = 281.48 × 204.93
  4. Step 4: Simplify right side
    205.34x = 57,682.67
  5. Step 5: Solve for x
    x = 57,682.67/205.34
  6. Step 6: Final answer
    x = 280.92

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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.