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Finding the Fourth Proportional to 482,163.59, 665,380.41 and 278,212.07

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Solution

The fourth proportional to 482,163.59, 665,380.41 and 278,212.07 is: 383,929.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,163.59 : 665,380.41 = 278,212.07 : x
  2. Step 2: Convert to fraction form
    482,163.59/665,380.41 = 278,212.07/x
  3. Step 3: Cross multiply
    482,163.59x = 665,380.41 × 278,212.07
  4. Step 4: Simplify right side
    482,163.59x = 185,116,857,876.65
  5. Step 5: Solve for x
    x = 185,116,857,876.65/482,163.59
  6. Step 6: Final answer
    x = 383,929.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.