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Finding the Third Proportional to 391.01 and 850.08

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Solution

The third proportional to 391.01 and 850.08 is: 1,848.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    391.01 : 850.08 = 850.08 : x
  2. Step 2: Convert to fraction form
    391.01/850.08 = 850.08/x
  3. Step 3: Cross multiply
    391.01x = 850.08 × 850.08
  4. Step 4: Simplify right side
    391.01x = 722,632.82
  5. Step 5: Solve for x
    x = 722,632.82/391.01
  6. Step 6: Final answer
    x = 1,848.13

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.