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Finding the Third Proportional to 45,430 and 106,115

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Solution

The third proportional to 45,430 and 106,115 is: 247,862.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,430 : 106,115 = 106,115 : x
  2. Step 2: Convert to fraction form
    45,430/106,115 = 106,115/x
  3. Step 3: Cross multiply
    45,430x = 106,115 × 106,115
  4. Step 4: Simplify right side
    45,430x = 11,260,393,225
  5. Step 5: Solve for x
    x = 11,260,393,225/45,430
  6. Step 6: Final answer
    x = 247,862.50

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.