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Finding the Fourth Proportional to 206.24, 308.92 and 175.72

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Solution

The fourth proportional to 206.24, 308.92 and 175.72 is: 263.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.24 : 308.92 = 175.72 : x
  2. Step 2: Convert to fraction form
    206.24/308.92 = 175.72/x
  3. Step 3: Cross multiply
    206.24x = 308.92 × 175.72
  4. Step 4: Simplify right side
    206.24x = 54,283.42
  5. Step 5: Solve for x
    x = 54,283.42/206.24
  6. Step 6: Final answer
    x = 263.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.