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Finding the Fourth Proportional to 381,951.23, 526,895.03 and 259,449.91

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Solution

The fourth proportional to 381,951.23, 526,895.03 and 259,449.91 is: 357,906.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,951.23 : 526,895.03 = 259,449.91 : x
  2. Step 2: Convert to fraction form
    381,951.23/526,895.03 = 259,449.91/x
  3. Step 3: Cross multiply
    381,951.23x = 526,895.03 × 259,449.91
  4. Step 4: Simplify right side
    381,951.23x = 136,702,867,444.33
  5. Step 5: Solve for x
    x = 136,702,867,444.33/381,951.23
  6. Step 6: Final answer
    x = 357,906.61

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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.