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Finding the Fourth Proportional to 205.73, 284.00 and 135.82

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Solution

The fourth proportional to 205.73, 284.00 and 135.82 is: 187.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.73 : 284.00 = 135.82 : x
  2. Step 2: Convert to fraction form
    205.73/284.00 = 135.82/x
  3. Step 3: Cross multiply
    205.73x = 284.00 × 135.82
  4. Step 4: Simplify right side
    205.73x = 38,572.56
  5. Step 5: Solve for x
    x = 38,572.56/205.73
  6. Step 6: Final answer
    x = 187.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.