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Finding the Third Proportional to 223,149 and 312,115.50

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Solution

The third proportional to 223,149 and 312,115.50 is: 436,551.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,149 : 312,115.50 = 312,115.50 : x
  2. Step 2: Convert to fraction form
    223,149/312,115.50 = 312,115.50/x
  3. Step 3: Cross multiply
    223,149x = 312,115.50 × 312,115.50
  4. Step 4: Simplify right side
    223,149x = 97,416,085,340.25
  5. Step 5: Solve for x
    x = 97,416,085,340.25/223,149
  6. Step 6: Final answer
    x = 436,551.74

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.