Home / 215,745.20-324,006.60-208,746.80

Finding the Fourth Proportional to 215,745.20, 324,006.60 and 208,746.80

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Solution

The fourth proportional to 215,745.20, 324,006.60 and 208,746.80 is: 313,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,745.20 : 324,006.60 = 208,746.80 : x
  2. Step 2: Convert to fraction form
    215,745.20/324,006.60 = 208,746.80/x
  3. Step 3: Cross multiply
    215,745.20x = 324,006.60 × 208,746.80
  4. Step 4: Simplify right side
    215,745.20x = 67,635,340,928.88
  5. Step 5: Solve for x
    x = 67,635,340,928.88/215,745.20
  6. Step 6: Final answer
    x = 313,496.39

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1.5x scale

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.