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Finding the Third Proportional to 209,731.50 and 314,622

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Solution

The third proportional to 209,731.50 and 314,622 is: 471,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,731.50 : 314,622 = 314,622 : x
  2. Step 2: Convert to fraction form
    209,731.50/314,622 = 314,622/x
  3. Step 3: Cross multiply
    209,731.50x = 314,622 × 314,622
  4. Step 4: Simplify right side
    209,731.50x = 98,987,002,884
  5. Step 5: Solve for x
    x = 98,987,002,884/209,731.50
  6. Step 6: Final answer
    x = 471,970.13

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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.