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Finding the Third Proportional to 388.38 and 601.13

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Solution

The third proportional to 388.38 and 601.13 is: 930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.38 : 601.13 = 601.13 : x
  2. Step 2: Convert to fraction form
    388.38/601.13 = 601.13/x
  3. Step 3: Cross multiply
    388.38x = 601.13 × 601.13
  4. Step 4: Simplify right side
    388.38x = 361,351.27
  5. Step 5: Solve for x
    x = 361,351.27/388.38
  6. Step 6: Final answer
    x = 930.42

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.