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Finding the Fourth Proportional to 381,562.65, 526,530.11 and 211,783.41

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Solution

The fourth proportional to 381,562.65, 526,530.11 and 211,783.41 is: 292,246.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,562.65 : 526,530.11 = 211,783.41 : x
  2. Step 2: Convert to fraction form
    381,562.65/526,530.11 = 211,783.41/x
  3. Step 3: Cross multiply
    381,562.65x = 526,530.11 × 211,783.41
  4. Step 4: Simplify right side
    381,562.65x = 111,510,341,104.56
  5. Step 5: Solve for x
    x = 111,510,341,104.56/381,562.65
  6. Step 6: Final answer
    x = 292,246.48

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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.