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Finding the Fourth Proportional to 381,437.96, 526,379.46 and 211,668.44

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Solution

The fourth proportional to 381,437.96, 526,379.46 and 211,668.44 is: 292,099.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,437.96 : 526,379.46 = 211,668.44 : x
  2. Step 2: Convert to fraction form
    381,437.96/526,379.46 = 211,668.44/x
  3. Step 3: Cross multiply
    381,437.96x = 526,379.46 × 211,668.44
  4. Step 4: Simplify right side
    381,437.96x = 111,417,919,146.24
  5. Step 5: Solve for x
    x = 111,417,919,146.24/381,437.96
  6. Step 6: Final answer
    x = 292,099.71

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1.5x scale

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.