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Finding the Third Proportional to 276,520.50 and 439,688.25

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Solution

The third proportional to 276,520.50 and 439,688.25 is: 699,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,520.50 : 439,688.25 = 439,688.25 : x
  2. Step 2: Convert to fraction form
    276,520.50/439,688.25 = 439,688.25/x
  3. Step 3: Cross multiply
    276,520.50x = 439,688.25 × 439,688.25
  4. Step 4: Simplify right side
    276,520.50x = 193,325,757,188.06
  5. Step 5: Solve for x
    x = 193,325,757,188.06/276,520.50
  6. Step 6: Final answer
    x = 699,137.16

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.