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Finding the Fourth Proportional to 205.70, 283.95 and 132.12

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Solution

The fourth proportional to 205.70, 283.95 and 132.12 is: 182.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.70 : 283.95 = 132.12 : x
  2. Step 2: Convert to fraction form
    205.70/283.95 = 132.12/x
  3. Step 3: Cross multiply
    205.70x = 283.95 × 132.12
  4. Step 4: Simplify right side
    205.70x = 37,515.47
  5. Step 5: Solve for x
    x = 37,515.47/205.70
  6. Step 6: Final answer
    x = 182.38

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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.