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Finding the Third Proportional to 139,652.25 and 209,432.25

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Solution

The third proportional to 139,652.25 and 209,432.25 is: 314,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,652.25 : 209,432.25 = 209,432.25 : x
  2. Step 2: Convert to fraction form
    139,652.25/209,432.25 = 209,432.25/x
  3. Step 3: Cross multiply
    139,652.25x = 209,432.25 × 209,432.25
  4. Step 4: Simplify right side
    139,652.25x = 43,861,867,340.06
  5. Step 5: Solve for x
    x = 43,861,867,340.06/139,652.25
  6. Step 6: Final answer
    x = 314,079.20

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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.