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Finding the Third Proportional to 105,321.94 and 219,390.19

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Solution

The third proportional to 105,321.94 and 219,390.19 is: 456,999.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,321.94 : 219,390.19 = 219,390.19 : x
  2. Step 2: Convert to fraction form
    105,321.94/219,390.19 = 219,390.19/x
  3. Step 3: Cross multiply
    105,321.94x = 219,390.19 × 219,390.19
  4. Step 4: Simplify right side
    105,321.94x = 48,132,054,371.29
  5. Step 5: Solve for x
    x = 48,132,054,371.29/105,321.94
  6. Step 6: Final answer
    x = 456,999.33

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.