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Finding the Fourth Proportional to 381,236.68, 526,169.70 and 211,525.48

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Solution

The fourth proportional to 381,236.68, 526,169.70 and 211,525.48 is: 291,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,236.68 : 526,169.70 = 211,525.48 : x
  2. Step 2: Convert to fraction form
    381,236.68/526,169.70 = 211,525.48/x
  3. Step 3: Cross multiply
    381,236.68x = 526,169.70 × 211,525.48
  4. Step 4: Simplify right side
    381,236.68x = 111,298,298,353.96
  5. Step 5: Solve for x
    x = 111,298,298,353.96/381,236.68
  6. Step 6: Final answer
    x = 291,940.16

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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.