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Finding the Fourth Proportional to 510,103.20, 764,809.20 and 270,256.80

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Solution

The fourth proportional to 510,103.20, 764,809.20 and 270,256.80 is: 405,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,103.20 : 764,809.20 = 270,256.80 : x
  2. Step 2: Convert to fraction form
    510,103.20/764,809.20 = 270,256.80/x
  3. Step 3: Cross multiply
    510,103.20x = 764,809.20 × 270,256.80
  4. Step 4: Simplify right side
    510,103.20x = 206,694,887,002.56
  5. Step 5: Solve for x
    x = 206,694,887,002.56/510,103.20
  6. Step 6: Final answer
    x = 405,202.10

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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.