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Finding the Fourth Proportional to 377,970.92, 521,576.42 and 208,195.56

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Solution

The fourth proportional to 377,970.92, 521,576.42 and 208,195.56 is: 287,296.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,970.92 : 521,576.42 = 208,195.56 : x
  2. Step 2: Convert to fraction form
    377,970.92/521,576.42 = 208,195.56/x
  3. Step 3: Cross multiply
    377,970.92x = 521,576.42 × 208,195.56
  4. Step 4: Simplify right side
    377,970.92x = 108,589,894,844.70
  5. Step 5: Solve for x
    x = 108,589,894,844.70/377,970.92
  6. Step 6: Final answer
    x = 287,296.96

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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.