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Finding the Fourth Proportional to 250.69, 345.67 and 203.97

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Solution

The fourth proportional to 250.69, 345.67 and 203.97 is: 281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.69 : 345.67 = 203.97 : x
  2. Step 2: Convert to fraction form
    250.69/345.67 = 203.97/x
  3. Step 3: Cross multiply
    250.69x = 345.67 × 203.97
  4. Step 4: Simplify right side
    250.69x = 70,506.15
  5. Step 5: Solve for x
    x = 70,506.15/250.69
  6. Step 6: Final answer
    x = 281.25

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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.