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Finding the Fourth Proportional to 512,222.80, 768,334.20 and 246,502.30

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Solution

The fourth proportional to 512,222.80, 768,334.20 and 246,502.30 is: 369,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,222.80 : 768,334.20 = 246,502.30 : x
  2. Step 2: Convert to fraction form
    512,222.80/768,334.20 = 246,502.30/x
  3. Step 3: Cross multiply
    512,222.80x = 768,334.20 × 246,502.30
  4. Step 4: Simplify right side
    512,222.80x = 189,396,147,468.66
  5. Step 5: Solve for x
    x = 189,396,147,468.66/512,222.80
  6. Step 6: Final answer
    x = 369,753.45

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Similar ratio
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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.