Home / 290,103.39-400,240.04-189,559.71

Finding the Fourth Proportional to 290,103.39, 400,240.04 and 189,559.71

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Solution

The fourth proportional to 290,103.39, 400,240.04 and 189,559.71 is: 261,525.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,103.39 : 400,240.04 = 189,559.71 : x
  2. Step 2: Convert to fraction form
    290,103.39/400,240.04 = 189,559.71/x
  3. Step 3: Cross multiply
    290,103.39x = 400,240.04 × 189,559.71
  4. Step 4: Simplify right side
    290,103.39x = 75,869,384,964.99
  5. Step 5: Solve for x
    x = 75,869,384,964.99/290,103.39
  6. Step 6: Final answer
    x = 261,525.33

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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.