Home / 231,806.40-319,578.72-198,176.12

Finding the Fourth Proportional to 231,806.40, 319,578.72 and 198,176.12

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Solution

The fourth proportional to 231,806.40, 319,578.72 and 198,176.12 is: 273,214.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,806.40 : 319,578.72 = 198,176.12 : x
  2. Step 2: Convert to fraction form
    231,806.40/319,578.72 = 198,176.12/x
  3. Step 3: Cross multiply
    231,806.40x = 319,578.72 × 198,176.12
  4. Step 4: Simplify right side
    231,806.40x = 63,332,870,764.17
  5. Step 5: Solve for x
    x = 63,332,870,764.17/231,806.40
  6. Step 6: Final answer
    x = 273,214.50

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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.