Home / 307,924.03-425,122.77-211,286.65

Finding the Fourth Proportional to 307,924.03, 425,122.77 and 211,286.65

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Solution

The fourth proportional to 307,924.03, 425,122.77 and 211,286.65 is: 291,704.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,924.03 : 425,122.77 = 211,286.65 : x
  2. Step 2: Convert to fraction form
    307,924.03/425,122.77 = 211,286.65/x
  3. Step 3: Cross multiply
    307,924.03x = 425,122.77 × 211,286.65
  4. Step 4: Simplify right side
    307,924.03x = 89,822,766,148.69
  5. Step 5: Solve for x
    x = 89,822,766,148.69/307,924.03
  6. Step 6: Final answer
    x = 291,704.31

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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.