Home / 219,257.19-302,633.42-123,819.75

Finding the Fourth Proportional to 219,257.19, 302,633.42 and 123,819.75

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Solution

The fourth proportional to 219,257.19, 302,633.42 and 123,819.75 is: 170,904.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,257.19 : 302,633.42 = 123,819.75 : x
  2. Step 2: Convert to fraction form
    219,257.19/302,633.42 = 123,819.75/x
  3. Step 3: Cross multiply
    219,257.19x = 302,633.42 × 123,819.75
  4. Step 4: Simplify right side
    219,257.19x = 37,471,993,786.95
  5. Step 5: Solve for x
    x = 37,471,993,786.95/219,257.19
  6. Step 6: Final answer
    x = 170,904.29

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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.