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Finding the Third Proportional to 145,694 and 317,866

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Solution

The third proportional to 145,694 and 317,866 is: 693,500.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,694 : 317,866 = 317,866 : x
  2. Step 2: Convert to fraction form
    145,694/317,866 = 317,866/x
  3. Step 3: Cross multiply
    145,694x = 317,866 × 317,866
  4. Step 4: Simplify right side
    145,694x = 101,038,793,956
  5. Step 5: Solve for x
    x = 101,038,793,956/145,694
  6. Step 6: Final answer
    x = 693,500.03

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.