Home / 330,828.20-496,436.70-120,487.40

Finding the Fourth Proportional to 330,828.20, 496,436.70 and 120,487.40

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Solution

The fourth proportional to 330,828.20, 496,436.70 and 120,487.40 is: 180,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,828.20 : 496,436.70 = 120,487.40 : x
  2. Step 2: Convert to fraction form
    330,828.20/496,436.70 = 120,487.40/x
  3. Step 3: Cross multiply
    330,828.20x = 496,436.70 × 120,487.40
  4. Step 4: Simplify right side
    330,828.20x = 59,814,367,247.58
  5. Step 5: Solve for x
    x = 59,814,367,247.58/330,828.20
  6. Step 6: Final answer
    x = 180,801.90

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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.