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Finding the Fourth Proportional to 299,149.20, 448,067.70 and 259,783.20

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Solution

The fourth proportional to 299,149.20, 448,067.70 and 259,783.20 is: 389,105.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,149.20 : 448,067.70 = 259,783.20 : x
  2. Step 2: Convert to fraction form
    299,149.20/448,067.70 = 259,783.20/x
  3. Step 3: Cross multiply
    299,149.20x = 448,067.70 × 259,783.20
  4. Step 4: Simplify right side
    299,149.20x = 116,400,460,922.64
  5. Step 5: Solve for x
    x = 116,400,460,922.64/299,149.20
  6. Step 6: Final answer
    x = 389,105.04

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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.