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Finding the Fourth Proportional to 330,739.68, 496,107.67 and 120,377.61

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Solution

The fourth proportional to 330,739.68, 496,107.67 and 120,377.61 is: 180,565.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,739.68 : 496,107.67 = 120,377.61 : x
  2. Step 2: Convert to fraction form
    330,739.68/496,107.67 = 120,377.61/x
  3. Step 3: Cross multiply
    330,739.68x = 496,107.67 × 120,377.61
  4. Step 4: Simplify right side
    330,739.68x = 59,720,255,617.27
  5. Step 5: Solve for x
    x = 59,720,255,617.27/330,739.68
  6. Step 6: Final answer
    x = 180,565.74

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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.