Home / 446,919.80-670,395.90-131,408.60

Finding the Fourth Proportional to 446,919.80, 670,395.90 and 131,408.60

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Solution

The fourth proportional to 446,919.80, 670,395.90 and 131,408.60 is: 197,117.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,919.80 : 670,395.90 = 131,408.60 : x
  2. Step 2: Convert to fraction form
    446,919.80/670,395.90 = 131,408.60/x
  3. Step 3: Cross multiply
    446,919.80x = 670,395.90 × 131,408.60
  4. Step 4: Simplify right side
    446,919.80x = 88,095,786,664.74
  5. Step 5: Solve for x
    x = 88,095,786,664.74/446,919.80
  6. Step 6: Final answer
    x = 197,117.66

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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.