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Finding the Third Proportional to 68,230 and 148,115

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Solution

The third proportional to 68,230 and 148,115 is: 321,530.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,230 : 148,115 = 148,115 : x
  2. Step 2: Convert to fraction form
    68,230/148,115 = 148,115/x
  3. Step 3: Cross multiply
    68,230x = 148,115 × 148,115
  4. Step 4: Simplify right side
    68,230x = 21,938,053,225
  5. Step 5: Solve for x
    x = 21,938,053,225/68,230
  6. Step 6: Final answer
    x = 321,530.90

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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.