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Finding the Third Proportional to 145,788 and 313,936

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Solution

The third proportional to 145,788 and 313,936 is: 676,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,788 : 313,936 = 313,936 : x
  2. Step 2: Convert to fraction form
    145,788/313,936 = 313,936/x
  3. Step 3: Cross multiply
    145,788x = 313,936 × 313,936
  4. Step 4: Simplify right side
    145,788x = 98,555,812,096
  5. Step 5: Solve for x
    x = 98,555,812,096/145,788
  6. Step 6: Final answer
    x = 676,021.43

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.