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Finding the Third Proportional to 217,921.50 and 472,030.50

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Solution

The third proportional to 217,921.50 and 472,030.50 is: 1,022,445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,921.50 : 472,030.50 = 472,030.50 : x
  2. Step 2: Convert to fraction form
    217,921.50/472,030.50 = 472,030.50/x
  3. Step 3: Cross multiply
    217,921.50x = 472,030.50 × 472,030.50
  4. Step 4: Simplify right side
    217,921.50x = 222,812,792,930.25
  5. Step 5: Solve for x
    x = 222,812,792,930.25/217,921.50
  6. Step 6: Final answer
    x = 1,022,445.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.