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Finding the Fourth Proportional to 330,757.20, 496,135.80 and 190,400.40

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Solution

The fourth proportional to 330,757.20, 496,135.80 and 190,400.40 is: 285,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,757.20 : 496,135.80 = 190,400.40 : x
  2. Step 2: Convert to fraction form
    330,757.20/496,135.80 = 190,400.40/x
  3. Step 3: Cross multiply
    330,757.20x = 496,135.80 × 190,400.40
  4. Step 4: Simplify right side
    330,757.20x = 94,464,454,774.32
  5. Step 5: Solve for x
    x = 94,464,454,774.32/330,757.20
  6. Step 6: Final answer
    x = 285,600.60

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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.