Home / 455,223.15-682,834.73-139,679.55

Finding the Fourth Proportional to 455,223.15, 682,834.73 and 139,679.55

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Solution

The fourth proportional to 455,223.15, 682,834.73 and 139,679.55 is: 209,519.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,223.15 : 682,834.73 = 139,679.55 : x
  2. Step 2: Convert to fraction form
    455,223.15/682,834.73 = 139,679.55/x
  3. Step 3: Cross multiply
    455,223.15x = 682,834.73 × 139,679.55
  4. Step 4: Simplify right side
    455,223.15x = 95,378,047,112.37
  5. Step 5: Solve for x
    x = 95,378,047,112.37/455,223.15
  6. Step 6: Final answer
    x = 209,519.33

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Similar ratio
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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.