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Finding the Fourth Proportional to 331,526.80, 496,704.60 and 320,563.60

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Solution

The fourth proportional to 331,526.80, 496,704.60 and 320,563.60 is: 480,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,526.80 : 496,704.60 = 320,563.60 : x
  2. Step 2: Convert to fraction form
    331,526.80/496,704.60 = 320,563.60/x
  3. Step 3: Cross multiply
    331,526.80x = 496,704.60 × 320,563.60
  4. Step 4: Simplify right side
    331,526.80x = 159,225,414,712.56
  5. Step 5: Solve for x
    x = 159,225,414,712.56/331,526.80
  6. Step 6: Final answer
    x = 480,279.17

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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.