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Finding the Fourth Proportional to 250.85, 345.93 and 167.90

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Solution

The fourth proportional to 250.85, 345.93 and 167.90 is: 231.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.85 : 345.93 = 167.90 : x
  2. Step 2: Convert to fraction form
    250.85/345.93 = 167.90/x
  3. Step 3: Cross multiply
    250.85x = 345.93 × 167.90
  4. Step 4: Simplify right side
    250.85x = 58,081.65
  5. Step 5: Solve for x
    x = 58,081.65/250.85
  6. Step 6: Final answer
    x = 231.54

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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.