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Finding the Fourth Proportional to 330,677.75, 496,219.67 and 262,808.30

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Solution

The fourth proportional to 330,677.75, 496,219.67 and 262,808.30 is: 394,373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,677.75 : 496,219.67 = 262,808.30 : x
  2. Step 2: Convert to fraction form
    330,677.75/496,219.67 = 262,808.30/x
  3. Step 3: Cross multiply
    330,677.75x = 496,219.67 × 262,808.30
  4. Step 4: Simplify right side
    330,677.75x = 130,410,644,104.12
  5. Step 5: Solve for x
    x = 130,410,644,104.12/330,677.75
  6. Step 6: Final answer
    x = 394,373.82

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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.