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Finding the Fourth Proportional to 330,703.20, 496,249.20 and 120,362.40

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Solution

The fourth proportional to 330,703.20, 496,249.20 and 120,362.40 is: 180,614.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,703.20 : 496,249.20 = 120,362.40 : x
  2. Step 2: Convert to fraction form
    330,703.20/496,249.20 = 120,362.40/x
  3. Step 3: Cross multiply
    330,703.20x = 496,249.20 × 120,362.40
  4. Step 4: Simplify right side
    330,703.20x = 59,729,744,710.08
  5. Step 5: Solve for x
    x = 59,729,744,710.08/330,703.20
  6. Step 6: Final answer
    x = 180,614.35

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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.