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Finding the Fourth Proportional to 331,480.80, 496,635.60 and 320,517.60

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Solution

The fourth proportional to 331,480.80, 496,635.60 and 320,517.60 is: 480,210.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,480.80 : 496,635.60 = 320,517.60 : x
  2. Step 2: Convert to fraction form
    331,480.80/496,635.60 = 320,517.60/x
  3. Step 3: Cross multiply
    331,480.80x = 496,635.60 × 320,517.60
  4. Step 4: Simplify right side
    331,480.80x = 159,180,450,586.56
  5. Step 5: Solve for x
    x = 159,180,450,586.56/331,480.80
  6. Step 6: Final answer
    x = 480,210.17

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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.