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Finding the Fourth Proportional to 483,834.97, 667,715.05 and 268,978.63

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Solution

The fourth proportional to 483,834.97, 667,715.05 and 268,978.63 is: 371,203.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,834.97 : 667,715.05 = 268,978.63 : x
  2. Step 2: Convert to fraction form
    483,834.97/667,715.05 = 268,978.63/x
  3. Step 3: Cross multiply
    483,834.97x = 667,715.05 × 268,978.63
  4. Step 4: Simplify right side
    483,834.97x = 179,601,079,379.38
  5. Step 5: Solve for x
    x = 179,601,079,379.38/483,834.97
  6. Step 6: Final answer
    x = 371,203.18

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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.