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Finding the Fourth Proportional to 250, 344.72 and 171.30

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Solution

The fourth proportional to 250, 344.72 and 171.30 is: 236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    250 : 344.72 = 171.30 : x
  2. Step 2: Convert to fraction form
    250/344.72 = 171.30/x
  3. Step 3: Cross multiply
    250x = 344.72 × 171.30
  4. Step 4: Simplify right side
    250x = 59,050.54
  5. Step 5: Solve for x
    x = 59,050.54/250
  6. Step 6: Final answer
    x = 236.20

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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.