Home / 205,380.90-283,619.55-194,198.40

Finding the Fourth Proportional to 205,380.90, 283,619.55 and 194,198.40

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Solution

The fourth proportional to 205,380.90, 283,619.55 and 194,198.40 is: 268,177.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,380.90 : 283,619.55 = 194,198.40 : x
  2. Step 2: Convert to fraction form
    205,380.90/283,619.55 = 194,198.40/x
  3. Step 3: Cross multiply
    205,380.90x = 283,619.55 × 194,198.40
  4. Step 4: Simplify right side
    205,380.90x = 55,078,462,818.72
  5. Step 5: Solve for x
    x = 55,078,462,818.72/205,380.90
  6. Step 6: Final answer
    x = 268,177.14

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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.