Home / 219,751.32-331,274.04-205,103.79

Finding the Fourth Proportional to 219,751.32, 331,274.04 and 205,103.79

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Solution

The fourth proportional to 219,751.32, 331,274.04 and 205,103.79 is: 309,192.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,751.32 : 331,274.04 = 205,103.79 : x
  2. Step 2: Convert to fraction form
    219,751.32/331,274.04 = 205,103.79/x
  3. Step 3: Cross multiply
    219,751.32x = 331,274.04 × 205,103.79
  4. Step 4: Simplify right side
    219,751.32x = 67,945,561,162.33
  5. Step 5: Solve for x
    x = 67,945,561,162.33/219,751.32
  6. Step 6: Final answer
    x = 309,192.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.