Home / 198,986.20-298,479.30-177,213.40

Finding the Fourth Proportional to 198,986.20, 298,479.30 and 177,213.40

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Solution

The fourth proportional to 198,986.20, 298,479.30 and 177,213.40 is: 265,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,986.20 : 298,479.30 = 177,213.40 : x
  2. Step 2: Convert to fraction form
    198,986.20/298,479.30 = 177,213.40/x
  3. Step 3: Cross multiply
    198,986.20x = 298,479.30 × 177,213.40
  4. Step 4: Simplify right side
    198,986.20x = 52,894,531,582.62
  5. Step 5: Solve for x
    x = 52,894,531,582.62/198,986.20
  6. Step 6: Final answer
    x = 265,820.10

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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.