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Finding the Third Proportional to 318,550.50 and 480,285

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Solution

The third proportional to 318,550.50 and 480,285 is: 724,135.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,550.50 : 480,285 = 480,285 : x
  2. Step 2: Convert to fraction form
    318,550.50/480,285 = 480,285/x
  3. Step 3: Cross multiply
    318,550.50x = 480,285 × 480,285
  4. Step 4: Simplify right side
    318,550.50x = 230,673,681,225
  5. Step 5: Solve for x
    x = 230,673,681,225/318,550.50
  6. Step 6: Final answer
    x = 724,135.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.