Home / 377,997.36-521,636.25-208,231.44

Finding the Fourth Proportional to 377,997.36, 521,636.25 and 208,231.44

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Solution

The fourth proportional to 377,997.36, 521,636.25 and 208,231.44 is: 287,359.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,997.36 : 521,636.25 = 208,231.44 : x
  2. Step 2: Convert to fraction form
    377,997.36/521,636.25 = 208,231.44/x
  3. Step 3: Cross multiply
    377,997.36x = 521,636.25 × 208,231.44
  4. Step 4: Simplify right side
    377,997.36x = 108,621,067,493.70
  5. Step 5: Solve for x
    x = 108,621,067,493.70/377,997.36
  6. Step 6: Final answer
    x = 287,359.33

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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.