Home / 381,660.12-526,670.41-211,883.31

Finding the Fourth Proportional to 381,660.12, 526,670.41 and 211,883.31

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Solution

The fourth proportional to 381,660.12, 526,670.41 and 211,883.31 is: 292,387.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,660.12 : 526,670.41 = 211,883.31 : x
  2. Step 2: Convert to fraction form
    381,660.12/526,670.41 = 211,883.31/x
  3. Step 3: Cross multiply
    381,660.12x = 526,670.41 × 211,883.31
  4. Step 4: Simplify right side
    381,660.12x = 111,592,669,749.86
  5. Step 5: Solve for x
    x = 111,592,669,749.86/381,660.12
  6. Step 6: Final answer
    x = 292,387.56

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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.