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Finding the Third Proportional to 317,914.88 and 445,554

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Solution

The third proportional to 317,914.88 and 445,554 is: 624,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,914.88 : 445,554 = 445,554 : x
  2. Step 2: Convert to fraction form
    317,914.88/445,554 = 445,554/x
  3. Step 3: Cross multiply
    317,914.88x = 445,554 × 445,554
  4. Step 4: Simplify right side
    317,914.88x = 198,518,366,916
  5. Step 5: Solve for x
    x = 198,518,366,916/317,914.88
  6. Step 6: Final answer
    x = 624,438.75

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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.