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Finding the Third Proportional to 143,011 and 313,497

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Solution

The third proportional to 143,011 and 313,497 is: 687,222.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,011 : 313,497 = 313,497 : x
  2. Step 2: Convert to fraction form
    143,011/313,497 = 313,497/x
  3. Step 3: Cross multiply
    143,011x = 313,497 × 313,497
  4. Step 4: Simplify right side
    143,011x = 98,280,369,009
  5. Step 5: Solve for x
    x = 98,280,369,009/143,011
  6. Step 6: Final answer
    x = 687,222.44

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.