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Finding the Third Proportional to 247,812.75 and 393,862.50

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Solution

The third proportional to 247,812.75 and 393,862.50 is: 625,987.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,812.75 : 393,862.50 = 393,862.50 : x
  2. Step 2: Convert to fraction form
    247,812.75/393,862.50 = 393,862.50/x
  3. Step 3: Cross multiply
    247,812.75x = 393,862.50 × 393,862.50
  4. Step 4: Simplify right side
    247,812.75x = 155,127,668,906.25
  5. Step 5: Solve for x
    x = 155,127,668,906.25/247,812.75
  6. Step 6: Final answer
    x = 625,987.44

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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.