Home / 355,198.80-531,923.40-167,991.60

Finding the Fourth Proportional to 355,198.80, 531,923.40 and 167,991.60

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Solution

The fourth proportional to 355,198.80, 531,923.40 and 167,991.60 is: 251,573.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,198.80 : 531,923.40 = 167,991.60 : x
  2. Step 2: Convert to fraction form
    355,198.80/531,923.40 = 167,991.60/x
  3. Step 3: Cross multiply
    355,198.80x = 531,923.40 × 167,991.60
  4. Step 4: Simplify right side
    355,198.80x = 89,358,663,043.44
  5. Step 5: Solve for x
    x = 89,358,663,043.44/355,198.80
  6. Step 6: Final answer
    x = 251,573.66

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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.