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Finding the Fourth Proportional to 320,229.91, 480,344.23 and 300,743.74

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Solution

The fourth proportional to 320,229.91, 480,344.23 and 300,743.74 is: 451,115.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,229.91 : 480,344.23 = 300,743.74 : x
  2. Step 2: Convert to fraction form
    320,229.91/480,344.23 = 300,743.74/x
  3. Step 3: Cross multiply
    320,229.91x = 480,344.23 × 300,743.74
  4. Step 4: Simplify right side
    320,229.91x = 144,460,520,217.62
  5. Step 5: Solve for x
    x = 144,460,520,217.62/320,229.91
  6. Step 6: Final answer
    x = 451,115.01

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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.