Home / 219,129.32-328,694.92-69,370.33

Finding the Fourth Proportional to 219,129.32, 328,694.92 and 69,370.33

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Solution

The fourth proportional to 219,129.32, 328,694.92 and 69,370.33 is: 104,055.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,129.32 : 328,694.92 = 69,370.33 : x
  2. Step 2: Convert to fraction form
    219,129.32/328,694.92 = 69,370.33/x
  3. Step 3: Cross multiply
    219,129.32x = 328,694.92 × 69,370.33
  4. Step 4: Simplify right side
    219,129.32x = 22,801,674,074.56
  5. Step 5: Solve for x
    x = 22,801,674,074.56/219,129.32
  6. Step 6: Final answer
    x = 104,055.79

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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.