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Finding the Fourth Proportional to 446,775.60, 670,249.80 and 131,242.80

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Solution

The fourth proportional to 446,775.60, 670,249.80 and 131,242.80 is: 196,889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,775.60 : 670,249.80 = 131,242.80 : x
  2. Step 2: Convert to fraction form
    446,775.60/670,249.80 = 131,242.80/x
  3. Step 3: Cross multiply
    446,775.60x = 670,249.80 × 131,242.80
  4. Step 4: Simplify right side
    446,775.60x = 87,965,460,451.44
  5. Step 5: Solve for x
    x = 87,965,460,451.44/446,775.60
  6. Step 6: Final answer
    x = 196,889.58

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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.