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Finding the Fourth Proportional to 381,597.72, 526,584.29 and 211,820.91

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Solution

The fourth proportional to 381,597.72, 526,584.29 and 211,820.91 is: 292,301.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,597.72 : 526,584.29 = 211,820.91 : x
  2. Step 2: Convert to fraction form
    381,597.72/526,584.29 = 211,820.91/x
  3. Step 3: Cross multiply
    381,597.72x = 526,584.29 × 211,820.91
  4. Step 4: Simplify right side
    381,597.72x = 111,541,561,657.20
  5. Step 5: Solve for x
    x = 111,541,561,657.20/381,597.72
  6. Step 6: Final answer
    x = 292,301.44

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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.