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Finding the Third Proportional to 247,618.69 and 393,894.56

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Solution

The third proportional to 247,618.69 and 393,894.56 is: 626,580.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,618.69 : 393,894.56 = 393,894.56 : x
  2. Step 2: Convert to fraction form
    247,618.69/393,894.56 = 393,894.56/x
  3. Step 3: Cross multiply
    247,618.69x = 393,894.56 × 393,894.56
  4. Step 4: Simplify right side
    247,618.69x = 155,152,926,367.07
  5. Step 5: Solve for x
    x = 155,152,926,367.07/247,618.69
  6. Step 6: Final answer
    x = 626,580.04

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.