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Finding the Fourth Proportional to 308,758.20, 462,481.20 and 256,270.20

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Solution

The fourth proportional to 308,758.20, 462,481.20 and 256,270.20 is: 383,860.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,758.20 : 462,481.20 = 256,270.20 : x
  2. Step 2: Convert to fraction form
    308,758.20/462,481.20 = 256,270.20/x
  3. Step 3: Cross multiply
    308,758.20x = 462,481.20 × 256,270.20
  4. Step 4: Simplify right side
    308,758.20x = 118,520,149,620.24
  5. Step 5: Solve for x
    x = 118,520,149,620.24/308,758.20
  6. Step 6: Final answer
    x = 383,860.74

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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.