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Finding the Fourth Proportional to 250.40, 343.94 and 206.64

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Solution

The fourth proportional to 250.40, 343.94 and 206.64 is: 283.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.40 : 343.94 = 206.64 : x
  2. Step 2: Convert to fraction form
    250.40/343.94 = 206.64/x
  3. Step 3: Cross multiply
    250.40x = 343.94 × 206.64
  4. Step 4: Simplify right side
    250.40x = 71,071.76
  5. Step 5: Solve for x
    x = 71,071.76/250.40
  6. Step 6: Final answer
    x = 283.83

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.