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Finding the Fourth Proportional to 330,839.20, 496,258.80 and 301,808.80

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Solution

The fourth proportional to 330,839.20, 496,258.80 and 301,808.80 is: 452,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,839.20 : 496,258.80 = 301,808.80 : x
  2. Step 2: Convert to fraction form
    330,839.20/496,258.80 = 301,808.80/x
  3. Step 3: Cross multiply
    330,839.20x = 496,258.80 × 301,808.80
  4. Step 4: Simplify right side
    330,839.20x = 149,775,272,917.44
  5. Step 5: Solve for x
    x = 149,775,272,917.44/330,839.20
  6. Step 6: Final answer
    x = 452,713.20

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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.