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Finding the Fourth Proportional to 299,651.20, 449,995.20 and 194,934.40

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Solution

The fourth proportional to 299,651.20, 449,995.20 and 194,934.40 is: 292,738.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,651.20 : 449,995.20 = 194,934.40 : x
  2. Step 2: Convert to fraction form
    299,651.20/449,995.20 = 194,934.40/x
  3. Step 3: Cross multiply
    299,651.20x = 449,995.20 × 194,934.40
  4. Step 4: Simplify right side
    299,651.20x = 87,719,544,314.88
  5. Step 5: Solve for x
    x = 87,719,544,314.88/299,651.20
  6. Step 6: Final answer
    x = 292,738.84

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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.