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Finding the Third Proportional to 195.38 and 310.50

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Solution

The third proportional to 195.38 and 310.50 is: 493.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.38 : 310.50 = 310.50 : x
  2. Step 2: Convert to fraction form
    195.38/310.50 = 310.50/x
  3. Step 3: Cross multiply
    195.38x = 310.50 × 310.50
  4. Step 4: Simplify right side
    195.38x = 96,410.25
  5. Step 5: Solve for x
    x = 96,410.25/195.38
  6. Step 6: Final answer
    x = 493.46

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.