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Finding the Fourth Proportional to 330,901.20, 496,481.40 and 120,560.40

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Solution

The fourth proportional to 330,901.20, 496,481.40 and 120,560.40 is: 180,887.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,901.20 : 496,481.40 = 120,560.40 : x
  2. Step 2: Convert to fraction form
    330,901.20/496,481.40 = 120,560.40/x
  3. Step 3: Cross multiply
    330,901.20x = 496,481.40 × 120,560.40
  4. Step 4: Simplify right side
    330,901.20x = 59,855,996,176.56
  5. Step 5: Solve for x
    x = 59,855,996,176.56/330,901.20
  6. Step 6: Final answer
    x = 180,887.82

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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.