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Finding the Fourth Proportional to 377,969.92, 521,575.04 and 208,194.56

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Solution

The fourth proportional to 377,969.92, 521,575.04 and 208,194.56 is: 287,295.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,969.92 : 521,575.04 = 208,194.56 : x
  2. Step 2: Convert to fraction form
    377,969.92/521,575.04 = 208,194.56/x
  3. Step 3: Cross multiply
    377,969.92x = 521,575.04 × 208,194.56
  4. Step 4: Simplify right side
    377,969.92x = 108,589,085,959.78
  5. Step 5: Solve for x
    x = 108,589,085,959.78/377,969.92
  6. Step 6: Final answer
    x = 287,295.58

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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.