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Finding the Third Proportional to 398 and 599.25

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Solution

The third proportional to 398 and 599.25 is: 902.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    398 : 599.25 = 599.25 : x
  2. Step 2: Convert to fraction form
    398/599.25 = 599.25/x
  3. Step 3: Cross multiply
    398x = 599.25 × 599.25
  4. Step 4: Simplify right side
    398x = 359,100.56
  5. Step 5: Solve for x
    x = 359,100.56/398
  6. Step 6: Final answer
    x = 902.26

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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.