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Finding the Third Proportional to 68,375 and 147,685

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Solution

The third proportional to 68,375 and 147,685 is: 318,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,375 : 147,685 = 147,685 : x
  2. Step 2: Convert to fraction form
    68,375/147,685 = 147,685/x
  3. Step 3: Cross multiply
    68,375x = 147,685 × 147,685
  4. Step 4: Simplify right side
    68,375x = 21,810,859,225
  5. Step 5: Solve for x
    x = 21,810,859,225/68,375
  6. Step 6: Final answer
    x = 318,988.80

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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.