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Finding the Fourth Proportional to 330,777.60, 496,166.40 and 198,067.20

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Solution

The fourth proportional to 330,777.60, 496,166.40 and 198,067.20 is: 297,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,777.60 : 496,166.40 = 198,067.20 : x
  2. Step 2: Convert to fraction form
    330,777.60/496,166.40 = 198,067.20/x
  3. Step 3: Cross multiply
    330,777.60x = 496,166.40 × 198,067.20
  4. Step 4: Simplify right side
    330,777.60x = 98,274,289,582.08
  5. Step 5: Solve for x
    x = 98,274,289,582.08/330,777.60
  6. Step 6: Final answer
    x = 297,100.80

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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.