Home / 209,444.27-311,797.40-208,198.70

Finding the Fourth Proportional to 209,444.27, 311,797.40 and 208,198.70

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Solution

The fourth proportional to 209,444.27, 311,797.40 and 208,198.70 is: 309,943.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,444.27 : 311,797.40 = 208,198.70 : x
  2. Step 2: Convert to fraction form
    209,444.27/311,797.40 = 208,198.70/x
  3. Step 3: Cross multiply
    209,444.27x = 311,797.40 × 208,198.70
  4. Step 4: Simplify right side
    209,444.27x = 64,915,810,743.40
  5. Step 5: Solve for x
    x = 64,915,810,743.40/209,444.27
  6. Step 6: Final answer
    x = 309,943.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.