Home / 259,309.04-389,067.24-111,668.72

Finding the Fourth Proportional to 259,309.04, 389,067.24 and 111,668.72

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Solution

The fourth proportional to 259,309.04, 389,067.24 and 111,668.72 is: 167,547.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,309.04 : 389,067.24 = 111,668.72 : x
  2. Step 2: Convert to fraction form
    259,309.04/389,067.24 = 111,668.72/x
  3. Step 3: Cross multiply
    259,309.04x = 389,067.24 × 111,668.72
  4. Step 4: Simplify right side
    259,309.04x = 43,446,640,684.73
  5. Step 5: Solve for x
    x = 43,446,640,684.73/259,309.04
  6. Step 6: Final answer
    x = 167,547.73

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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.