Home / 318,843.03-439,970.82-196,315.95

Finding the Fourth Proportional to 318,843.03, 439,970.82 and 196,315.95

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Solution

The fourth proportional to 318,843.03, 439,970.82 and 196,315.95 is: 270,895.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,843.03 : 439,970.82 = 196,315.95 : x
  2. Step 2: Convert to fraction form
    318,843.03/439,970.82 = 196,315.95/x
  3. Step 3: Cross multiply
    318,843.03x = 439,970.82 × 196,315.95
  4. Step 4: Simplify right side
    318,843.03x = 86,373,289,500.58
  5. Step 5: Solve for x
    x = 86,373,289,500.58/318,843.03
  6. Step 6: Final answer
    x = 270,895.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.