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Finding the Fourth Proportional to 199,315.50, 298,974.33 and 51,571.50

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Solution

The fourth proportional to 199,315.50, 298,974.33 and 51,571.50 is: 77,357.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,315.50 : 298,974.33 = 51,571.50 : x
  2. Step 2: Convert to fraction form
    199,315.50/298,974.33 = 51,571.50/x
  3. Step 3: Cross multiply
    199,315.50x = 298,974.33 × 51,571.50
  4. Step 4: Simplify right side
    199,315.50x = 15,418,554,659.60
  5. Step 5: Solve for x
    x = 15,418,554,659.60/199,315.50
  6. Step 6: Final answer
    x = 77,357.53

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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.