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Finding the Fourth Proportional to 377,843.44, 521,427.36 and 208,078.24

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Solution

The fourth proportional to 377,843.44, 521,427.36 and 208,078.24 is: 287,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,843.44 : 521,427.36 = 208,078.24 : x
  2. Step 2: Convert to fraction form
    377,843.44/521,427.36 = 208,078.24/x
  3. Step 3: Cross multiply
    377,843.44x = 521,427.36 × 208,078.24
  4. Step 4: Simplify right side
    377,843.44x = 108,497,687,356.65
  5. Step 5: Solve for x
    x = 108,497,687,356.65/377,843.44
  6. Step 6: Final answer
    x = 287,149.85

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1.5x scale

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.