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Finding the Third Proportional to 105,609.45 and 219,955.50

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Solution

The third proportional to 105,609.45 and 219,955.50 is: 458,106.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,609.45 : 219,955.50 = 219,955.50 : x
  2. Step 2: Convert to fraction form
    105,609.45/219,955.50 = 219,955.50/x
  3. Step 3: Cross multiply
    105,609.45x = 219,955.50 × 219,955.50
  4. Step 4: Simplify right side
    105,609.45x = 48,380,421,980.25
  5. Step 5: Solve for x
    x = 48,380,421,980.25/105,609.45
  6. Step 6: Final answer
    x = 458,106.96

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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.