Home / 455,271.12-682,846.62-139,701.60

Finding the Fourth Proportional to 455,271.12, 682,846.62 and 139,701.60

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Solution

The fourth proportional to 455,271.12, 682,846.62 and 139,701.60 is: 209,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,271.12 : 682,846.62 = 139,701.60 : x
  2. Step 2: Convert to fraction form
    455,271.12/682,846.62 = 139,701.60/x
  3. Step 3: Cross multiply
    455,271.12x = 682,846.62 × 139,701.60
  4. Step 4: Simplify right side
    455,271.12x = 95,394,765,368.59
  5. Step 5: Solve for x
    x = 95,394,765,368.59/455,271.12
  6. Step 6: Final answer
    x = 209,533.97

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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.