Finding the Fourth Proportional to 263,252.08, 394,920.24 and 85,745.44
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Solution
The fourth proportional to 263,252.08, 394,920.24 and 85,745.44 is: 128,631.88
Step by Step Solution
- Step 1: Write the proportion equation
263,252.08 : 394,920.24 = 85,745.44 : x - Step 2: Convert to fraction form
263,252.08/394,920.24 = 85,745.44/x - Step 3: Cross multiply
263,252.08x = 394,920.24 × 85,745.44 - Step 4: Simplify right side
263,252.08x = 33,862,609,743.71 - Step 5: Solve for x
x = 33,862,609,743.71/263,252.08 - Step 6: Final answer
x = 128,631.88
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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.