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Finding the Fourth Proportional to 199,322.47, 298,984.79 and 51,578.47

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Solution

The fourth proportional to 199,322.47, 298,984.79 and 51,578.47 is: 77,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,322.47 : 298,984.79 = 51,578.47 : x
  2. Step 2: Convert to fraction form
    199,322.47/298,984.79 = 51,578.47/x
  3. Step 3: Cross multiply
    199,322.47x = 298,984.79 × 51,578.47
  4. Step 4: Simplify right side
    199,322.47x = 15,421,177,763.58
  5. Step 5: Solve for x
    x = 15,421,177,763.58/199,322.47
  6. Step 6: Final answer
    x = 77,367.98

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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.