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Finding the Fourth Proportional to 250.92, 348.21 and 245.16

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Solution

The fourth proportional to 250.92, 348.21 and 245.16 is: 340.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.92 : 348.21 = 245.16 : x
  2. Step 2: Convert to fraction form
    250.92/348.21 = 245.16/x
  3. Step 3: Cross multiply
    250.92x = 348.21 × 245.16
  4. Step 4: Simplify right side
    250.92x = 85,367.16
  5. Step 5: Solve for x
    x = 85,367.16/250.92
  6. Step 6: Final answer
    x = 340.22

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.