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Finding the Fourth Proportional to 205.54, 283.85 and 173.05

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Solution

The fourth proportional to 205.54, 283.85 and 173.05 is: 238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.54 : 283.85 = 173.05 : x
  2. Step 2: Convert to fraction form
    205.54/283.85 = 173.05/x
  3. Step 3: Cross multiply
    205.54x = 283.85 × 173.05
  4. Step 4: Simplify right side
    205.54x = 49,119.26
  5. Step 5: Solve for x
    x = 49,119.26/205.54
  6. Step 6: Final answer
    x = 238.98

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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.