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Finding the Fourth Proportional to 327,467.90, 490,217.70 and 194,279.60

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Solution

The fourth proportional to 327,467.90, 490,217.70 and 194,279.60 is: 290,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,467.90 : 490,217.70 = 194,279.60 : x
  2. Step 2: Convert to fraction form
    327,467.90/490,217.70 = 194,279.60/x
  3. Step 3: Cross multiply
    327,467.90x = 490,217.70 × 194,279.60
  4. Step 4: Simplify right side
    327,467.90x = 95,239,298,668.92
  5. Step 5: Solve for x
    x = 95,239,298,668.92/327,467.90
  6. Step 6: Final answer
    x = 290,835.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.