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Finding the Fourth Proportional to 330,750.40, 496,255.20 and 131,036.80

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Solution

The fourth proportional to 330,750.40, 496,255.20 and 131,036.80 is: 196,606.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,750.40 : 496,255.20 = 131,036.80 : x
  2. Step 2: Convert to fraction form
    330,750.40/496,255.20 = 131,036.80/x
  3. Step 3: Cross multiply
    330,750.40x = 496,255.20 × 131,036.80
  4. Step 4: Simplify right side
    330,750.40x = 65,027,693,391.36
  5. Step 5: Solve for x
    x = 65,027,693,391.36/330,750.40
  6. Step 6: Final answer
    x = 196,606.54

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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.