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Finding the Third Proportional to 205,621.50 and 308,425.50

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Solution

The third proportional to 205,621.50 and 308,425.50 is: 462,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,621.50 : 308,425.50 = 308,425.50 : x
  2. Step 2: Convert to fraction form
    205,621.50/308,425.50 = 308,425.50/x
  3. Step 3: Cross multiply
    205,621.50x = 308,425.50 × 308,425.50
  4. Step 4: Simplify right side
    205,621.50x = 95,126,289,050.25
  5. Step 5: Solve for x
    x = 95,126,289,050.25/205,621.50
  6. Step 6: Final answer
    x = 462,628.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.