Home / 330,860.40-496,420.20-131,146.80

Finding the Fourth Proportional to 330,860.40, 496,420.20 and 131,146.80

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Solution

The fourth proportional to 330,860.40, 496,420.20 and 131,146.80 is: 196,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,860.40 : 496,420.20 = 131,146.80 : x
  2. Step 2: Convert to fraction form
    330,860.40/496,420.20 = 131,146.80/x
  3. Step 3: Cross multiply
    330,860.40x = 496,420.20 × 131,146.80
  4. Step 4: Simplify right side
    330,860.40x = 65,103,920,685.36
  5. Step 5: Solve for x
    x = 65,103,920,685.36/330,860.40
  6. Step 6: Final answer
    x = 196,771.57

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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.