Home / 203,025.80-304,352.94-78,272.84

Finding the Fourth Proportional to 203,025.80, 304,352.94 and 78,272.84

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Solution

The fourth proportional to 203,025.80, 304,352.94 and 78,272.84 is: 117,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,025.80 : 304,352.94 = 78,272.84 : x
  2. Step 2: Convert to fraction form
    203,025.80/304,352.94 = 78,272.84/x
  3. Step 3: Cross multiply
    203,025.80x = 304,352.94 × 78,272.84
  4. Step 4: Simplify right side
    203,025.80x = 23,822,568,976.15
  5. Step 5: Solve for x
    x = 23,822,568,976.15/203,025.80
  6. Step 6: Final answer
    x = 117,337.64

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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.