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Finding the Fourth Proportional to 198,479.70, 298,102.53 and 170,081.07

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Solution

The fourth proportional to 198,479.70, 298,102.53 and 170,081.07 is: 255,449.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,479.70 : 298,102.53 = 170,081.07 : x
  2. Step 2: Convert to fraction form
    198,479.70/298,102.53 = 170,081.07/x
  3. Step 3: Cross multiply
    198,479.70x = 298,102.53 × 170,081.07
  4. Step 4: Simplify right side
    198,479.70x = 50,701,597,272.11
  5. Step 5: Solve for x
    x = 50,701,597,272.11/198,479.70
  6. Step 6: Final answer
    x = 255,449.79

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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.