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Finding the Fourth Proportional to 381,385.02, 526,311.63 and 211,619.04

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Solution

The fourth proportional to 381,385.02, 526,311.63 and 211,619.04 is: 292,034.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,385.02 : 526,311.63 = 211,619.04 : x
  2. Step 2: Convert to fraction form
    381,385.02/526,311.63 = 211,619.04/x
  3. Step 3: Cross multiply
    381,385.02x = 526,311.63 × 211,619.04
  4. Step 4: Simplify right side
    381,385.02x = 111,377,561,881.44
  5. Step 5: Solve for x
    x = 111,377,561,881.44/381,385.02
  6. Step 6: Final answer
    x = 292,034.44

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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.