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Finding the Third Proportional to 381,135 and 560,284.50

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Solution

The third proportional to 381,135 and 560,284.50 is: 823,641.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,135 : 560,284.50 = 560,284.50 : x
  2. Step 2: Convert to fraction form
    381,135/560,284.50 = 560,284.50/x
  3. Step 3: Cross multiply
    381,135x = 560,284.50 × 560,284.50
  4. Step 4: Simplify right side
    381,135x = 313,918,720,940.25
  5. Step 5: Solve for x
    x = 313,918,720,940.25/381,135
  6. Step 6: Final answer
    x = 823,641.81

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.