Home / 252,439.20-378,002.70-199,513.80

Finding the Fourth Proportional to 252,439.20, 378,002.70 and 199,513.80

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Solution

The fourth proportional to 252,439.20, 378,002.70 and 199,513.80 is: 298,752.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,439.20 : 378,002.70 = 199,513.80 : x
  2. Step 2: Convert to fraction form
    252,439.20/378,002.70 = 199,513.80/x
  3. Step 3: Cross multiply
    252,439.20x = 378,002.70 × 199,513.80
  4. Step 4: Simplify right side
    252,439.20x = 75,416,755,087.26
  5. Step 5: Solve for x
    x = 75,416,755,087.26/252,439.20
  6. Step 6: Final answer
    x = 298,752.16

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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.