Home / 381,213.20-526,070.41-211,442.96

Finding the Fourth Proportional to 381,213.20, 526,070.41 and 211,442.96

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Solution

The fourth proportional to 381,213.20, 526,070.41 and 211,442.96 is: 291,789.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,213.20 : 526,070.41 = 211,442.96 : x
  2. Step 2: Convert to fraction form
    381,213.20/526,070.41 = 211,442.96/x
  3. Step 3: Cross multiply
    381,213.20x = 526,070.41 × 211,442.96
  4. Step 4: Simplify right side
    381,213.20x = 111,233,881,499.85
  5. Step 5: Solve for x
    x = 111,233,881,499.85/381,213.20
  6. Step 6: Final answer
    x = 291,789.17

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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.