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Finding the Third Proportional to 143,406 and 221,937

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Solution

The third proportional to 143,406 and 221,937 is: 343,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,406 : 221,937 = 221,937 : x
  2. Step 2: Convert to fraction form
    143,406/221,937 = 221,937/x
  3. Step 3: Cross multiply
    143,406x = 221,937 × 221,937
  4. Step 4: Simplify right side
    143,406x = 49,256,031,969
  5. Step 5: Solve for x
    x = 49,256,031,969/143,406
  6. Step 6: Final answer
    x = 343,472.60

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.