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Finding the Third Proportional to 310 and 329.50

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Solution

The third proportional to 310 and 329.50 is: 350.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    310 : 329.50 = 329.50 : x
  2. Step 2: Convert to fraction form
    310/329.50 = 329.50/x
  3. Step 3: Cross multiply
    310x = 329.50 × 329.50
  4. Step 4: Simplify right side
    310x = 108,570.25
  5. Step 5: Solve for x
    x = 108,570.25/310
  6. Step 6: Final answer
    x = 350.23

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These problems maintain the same ratio (1.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.