Home / 377,997.22-521,635.94-208,231.35

Finding the Fourth Proportional to 377,997.22, 521,635.94 and 208,231.35

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Solution

The fourth proportional to 377,997.22, 521,635.94 and 208,231.35 is: 287,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,997.22 : 521,635.94 = 208,231.35 : x
  2. Step 2: Convert to fraction form
    377,997.22/521,635.94 = 208,231.35/x
  3. Step 3: Cross multiply
    377,997.22x = 521,635.94 × 208,231.35
  4. Step 4: Simplify right side
    377,997.22x = 108,620,952,345.38
  5. Step 5: Solve for x
    x = 108,620,952,345.38/377,997.22
  6. Step 6: Final answer
    x = 287,359.13

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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.