Home / 378,060.62-521,723.41-208,294.74

Finding the Fourth Proportional to 378,060.62, 521,723.41 and 208,294.74

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Solution

The fourth proportional to 378,060.62, 521,723.41 and 208,294.74 is: 287,446.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,060.62 : 521,723.41 = 208,294.74 : x
  2. Step 2: Convert to fraction form
    378,060.62/521,723.41 = 208,294.74/x
  3. Step 3: Cross multiply
    378,060.62x = 521,723.41 × 208,294.74
  4. Step 4: Simplify right side
    378,060.62x = 108,672,242,688.78
  5. Step 5: Solve for x
    x = 108,672,242,688.78/378,060.62
  6. Step 6: Final answer
    x = 287,446.61

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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.