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Finding the Fourth Proportional to 344.08, 518.16 and 248.56

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Solution

The fourth proportional to 344.08, 518.16 and 248.56 is: 374.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.08 : 518.16 = 248.56 : x
  2. Step 2: Convert to fraction form
    344.08/518.16 = 248.56/x
  3. Step 3: Cross multiply
    344.08x = 518.16 × 248.56
  4. Step 4: Simplify right side
    344.08x = 128,793.85
  5. Step 5: Solve for x
    x = 128,793.85/344.08
  6. Step 6: Final answer
    x = 374.31

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.