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Finding the Fourth Proportional to 384,338.24, 576,520.32 and 103,857.92

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Solution

The fourth proportional to 384,338.24, 576,520.32 and 103,857.92 is: 155,790.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,338.24 : 576,520.32 = 103,857.92 : x
  2. Step 2: Convert to fraction form
    384,338.24/576,520.32 = 103,857.92/x
  3. Step 3: Cross multiply
    384,338.24x = 576,520.32 × 103,857.92
  4. Step 4: Simplify right side
    384,338.24x = 59,876,201,272.93
  5. Step 5: Solve for x
    x = 59,876,201,272.93/384,338.24
  6. Step 6: Final answer
    x = 155,790.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.