Home / 381,940.24-527,081.25-209,855.44

Finding the Fourth Proportional to 381,940.24, 527,081.25 and 209,855.44

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Solution

The fourth proportional to 381,940.24, 527,081.25 and 209,855.44 is: 289,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,940.24 : 527,081.25 = 209,855.44 : x
  2. Step 2: Convert to fraction form
    381,940.24/527,081.25 = 209,855.44/x
  3. Step 3: Cross multiply
    381,940.24x = 527,081.25 × 209,855.44
  4. Step 4: Simplify right side
    381,940.24x = 110,610,867,634.50
  5. Step 5: Solve for x
    x = 110,610,867,634.50/381,940.24
  6. Step 6: Final answer
    x = 289,602.55

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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.