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Finding the Fourth Proportional to 206.69, 310.18 and 166.59

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Solution

The fourth proportional to 206.69, 310.18 and 166.59 is: 250.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.69 : 310.18 = 166.59 : x
  2. Step 2: Convert to fraction form
    206.69/310.18 = 166.59/x
  3. Step 3: Cross multiply
    206.69x = 310.18 × 166.59
  4. Step 4: Simplify right side
    206.69x = 51,672.47
  5. Step 5: Solve for x
    x = 51,672.47/206.69
  6. Step 6: Final answer
    x = 250.01

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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.