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Finding the Third Proportional to 143,742 and 221,610

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Solution

The third proportional to 143,742 and 221,610 is: 341,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,742 : 221,610 = 221,610 : x
  2. Step 2: Convert to fraction form
    143,742/221,610 = 221,610/x
  3. Step 3: Cross multiply
    143,742x = 221,610 × 221,610
  4. Step 4: Simplify right side
    143,742x = 49,110,992,100
  5. Step 5: Solve for x
    x = 49,110,992,100/143,742
  6. Step 6: Final answer
    x = 341,660.70

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.