Home / 377,847.68-521,427.24-208,080.56

Finding the Fourth Proportional to 377,847.68, 521,427.24 and 208,080.56

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Solution

The fourth proportional to 377,847.68, 521,427.24 and 208,080.56 is: 287,149.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,847.68 : 521,427.24 = 208,080.56 : x
  2. Step 2: Convert to fraction form
    377,847.68/521,427.24 = 208,080.56/x
  3. Step 3: Cross multiply
    377,847.68x = 521,427.24 × 208,080.56
  4. Step 4: Simplify right side
    377,847.68x = 108,498,872,098.45
  5. Step 5: Solve for x
    x = 108,498,872,098.45/377,847.68
  6. Step 6: Final answer
    x = 287,149.76

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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.