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Finding the Fourth Proportional to 199,271.52, 298,915.20 and 79,351.20

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Solution

The fourth proportional to 199,271.52, 298,915.20 and 79,351.20 is: 119,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,271.52 : 298,915.20 = 79,351.20 : x
  2. Step 2: Convert to fraction form
    199,271.52/298,915.20 = 79,351.20/x
  3. Step 3: Cross multiply
    199,271.52x = 298,915.20 × 79,351.20
  4. Step 4: Simplify right side
    199,271.52x = 23,719,279,818.24
  5. Step 5: Solve for x
    x = 23,719,279,818.24/199,271.52
  6. Step 6: Final answer
    x = 119,029.95

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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.