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Finding the Third Proportional to 130,685 and 195,505

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Solution

The third proportional to 130,685 and 195,505 is: 292,475.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,685 : 195,505 = 195,505 : x
  2. Step 2: Convert to fraction form
    130,685/195,505 = 195,505/x
  3. Step 3: Cross multiply
    130,685x = 195,505 × 195,505
  4. Step 4: Simplify right side
    130,685x = 38,222,205,025
  5. Step 5: Solve for x
    x = 38,222,205,025/130,685
  6. Step 6: Final answer
    x = 292,475.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.