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Finding the Third Proportional to 139,097.25 and 289,959.75

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Solution

The third proportional to 139,097.25 and 289,959.75 is: 604,445.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,097.25 : 289,959.75 = 289,959.75 : x
  2. Step 2: Convert to fraction form
    139,097.25/289,959.75 = 289,959.75/x
  3. Step 3: Cross multiply
    139,097.25x = 289,959.75 × 289,959.75
  4. Step 4: Simplify right side
    139,097.25x = 84,076,656,620.06
  5. Step 5: Solve for x
    x = 84,076,656,620.06/139,097.25
  6. Step 6: Final answer
    x = 604,445.14

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.