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Finding the Fourth Proportional to 205.81, 284.31 and 175.06

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Solution

The fourth proportional to 205.81, 284.31 and 175.06 is: 241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.81 : 284.31 = 175.06 : x
  2. Step 2: Convert to fraction form
    205.81/284.31 = 175.06/x
  3. Step 3: Cross multiply
    205.81x = 284.31 × 175.06
  4. Step 4: Simplify right side
    205.81x = 49,771.66
  5. Step 5: Solve for x
    x = 49,771.66/205.81
  6. Step 6: Final answer
    x = 241.84

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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.