Home / 205,012.91-307,508.42-55,250.79

Finding the Fourth Proportional to 205,012.91, 307,508.42 and 55,250.79

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Solution

The fourth proportional to 205,012.91, 307,508.42 and 55,250.79 is: 82,873.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,012.91 : 307,508.42 = 55,250.79 : x
  2. Step 2: Convert to fraction form
    205,012.91/307,508.42 = 55,250.79/x
  3. Step 3: Cross multiply
    205,012.91x = 307,508.42 × 55,250.79
  4. Step 4: Simplify right side
    205,012.91x = 16,990,082,860.40
  5. Step 5: Solve for x
    x = 16,990,082,860.40/205,012.91
  6. Step 6: Final answer
    x = 82,873.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.