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Finding the Fourth Proportional to 205.74, 284.07 and 132.10

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Solution

The fourth proportional to 205.74, 284.07 and 132.10 is: 182.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.74 : 284.07 = 132.10 : x
  2. Step 2: Convert to fraction form
    205.74/284.07 = 132.10/x
  3. Step 3: Cross multiply
    205.74x = 284.07 × 132.10
  4. Step 4: Simplify right side
    205.74x = 37,525.43
  5. Step 5: Solve for x
    x = 37,525.43/205.74
  6. Step 6: Final answer
    x = 182.39

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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.