Home / 198,315.10-297,910.05-190,879.30

Finding the Fourth Proportional to 198,315.10, 297,910.05 and 190,879.30

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Solution

The fourth proportional to 198,315.10, 297,910.05 and 190,879.30 is: 286,739.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,315.10 : 297,910.05 = 190,879.30 : x
  2. Step 2: Convert to fraction form
    198,315.10/297,910.05 = 190,879.30/x
  3. Step 3: Cross multiply
    198,315.10x = 297,910.05 × 190,879.30
  4. Step 4: Simplify right side
    198,315.10x = 56,864,861,806.97
  5. Step 5: Solve for x
    x = 56,864,861,806.97/198,315.10
  6. Step 6: Final answer
    x = 286,739.95

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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.