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Finding the Third Proportional to 87,647.50 and 191,879.50

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Solution

The third proportional to 87,647.50 and 191,879.50 is: 420,066.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,647.50 : 191,879.50 = 191,879.50 : x
  2. Step 2: Convert to fraction form
    87,647.50/191,879.50 = 191,879.50/x
  3. Step 3: Cross multiply
    87,647.50x = 191,879.50 × 191,879.50
  4. Step 4: Simplify right side
    87,647.50x = 36,817,742,520.25
  5. Step 5: Solve for x
    x = 36,817,742,520.25/87,647.50
  6. Step 6: Final answer
    x = 420,066.09

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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.