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Finding the Third Proportional to 239,815.25 and 518,054.50

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Solution

The third proportional to 239,815.25 and 518,054.50 is: 1,119,113.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,815.25 : 518,054.50 = 518,054.50 : x
  2. Step 2: Convert to fraction form
    239,815.25/518,054.50 = 518,054.50/x
  3. Step 3: Cross multiply
    239,815.25x = 518,054.50 × 518,054.50
  4. Step 4: Simplify right side
    239,815.25x = 268,380,464,970.25
  5. Step 5: Solve for x
    x = 268,380,464,970.25/239,815.25
  6. Step 6: Final answer
    x = 1,119,113.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.