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Finding the Fourth Proportional to 250.22, 345.47 and 171.56

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Solution

The fourth proportional to 250.22, 345.47 and 171.56 is: 236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.22 : 345.47 = 171.56 : x
  2. Step 2: Convert to fraction form
    250.22/345.47 = 171.56/x
  3. Step 3: Cross multiply
    250.22x = 345.47 × 171.56
  4. Step 4: Simplify right side
    250.22x = 59,268.84
  5. Step 5: Solve for x
    x = 59,268.84/250.22
  6. Step 6: Final answer
    x = 236.86

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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.