Home / 330,816.40-496,354.20-131,102.80

Finding the Fourth Proportional to 330,816.40, 496,354.20 and 131,102.80

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Solution

The fourth proportional to 330,816.40, 496,354.20 and 131,102.80 is: 196,705.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,816.40 : 496,354.20 = 131,102.80 : x
  2. Step 2: Convert to fraction form
    330,816.40/496,354.20 = 131,102.80/x
  3. Step 3: Cross multiply
    330,816.40x = 496,354.20 × 131,102.80
  4. Step 4: Simplify right side
    330,816.40x = 65,073,425,411.76
  5. Step 5: Solve for x
    x = 65,073,425,411.76/330,816.40
  6. Step 6: Final answer
    x = 196,705.56

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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.