Home / 289,600.20-434,400.30-195,121.80

Finding the Fourth Proportional to 289,600.20, 434,400.30 and 195,121.80

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Solution

The fourth proportional to 289,600.20, 434,400.30 and 195,121.80 is: 292,682.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,600.20 : 434,400.30 = 195,121.80 : x
  2. Step 2: Convert to fraction form
    289,600.20/434,400.30 = 195,121.80/x
  3. Step 3: Cross multiply
    289,600.20x = 434,400.30 × 195,121.80
  4. Step 4: Simplify right side
    289,600.20x = 84,760,968,456.54
  5. Step 5: Solve for x
    x = 84,760,968,456.54/289,600.20
  6. Step 6: Final answer
    x = 292,682.70

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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.