Home / 378,836.98-568,411.29-278,149.19

Finding the Fourth Proportional to 378,836.98, 568,411.29 and 278,149.19

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Solution

The fourth proportional to 378,836.98, 568,411.29 and 278,149.19 is: 417,338.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,836.98 : 568,411.29 = 278,149.19 : x
  2. Step 2: Convert to fraction form
    378,836.98/568,411.29 = 278,149.19/x
  3. Step 3: Cross multiply
    378,836.98x = 568,411.29 × 278,149.19
  4. Step 4: Simplify right side
    378,836.98x = 158,103,137,058.30
  5. Step 5: Solve for x
    x = 158,103,137,058.30/378,836.98
  6. Step 6: Final answer
    x = 417,338.19

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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.