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Finding the Third Proportional to 305,161.50 and 443,890.50

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Solution

The third proportional to 305,161.50 and 443,890.50 is: 645,686.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,161.50 : 443,890.50 = 443,890.50 : x
  2. Step 2: Convert to fraction form
    305,161.50/443,890.50 = 443,890.50/x
  3. Step 3: Cross multiply
    305,161.50x = 443,890.50 × 443,890.50
  4. Step 4: Simplify right side
    305,161.50x = 197,038,775,990.25
  5. Step 5: Solve for x
    x = 197,038,775,990.25/305,161.50
  6. Step 6: Final answer
    x = 645,686.88

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.