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Finding the Fourth Proportional to 381,759.62, 526,829.22 and 211,993.74

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Solution

The fourth proportional to 381,759.62, 526,829.22 and 211,993.74 is: 292,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,759.62 : 526,829.22 = 211,993.74 : x
  2. Step 2: Convert to fraction form
    381,759.62/526,829.22 = 211,993.74/x
  3. Step 3: Cross multiply
    381,759.62x = 526,829.22 × 211,993.74
  4. Step 4: Simplify right side
    381,759.62x = 111,684,496,689.08
  5. Step 5: Solve for x
    x = 111,684,496,689.08/381,759.62
  6. Step 6: Final answer
    x = 292,551.89

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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.