Finding the Fourth Proportional to 171,163.80, 256,745.70 and 115,176.60
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Solution
The fourth proportional to 171,163.80, 256,745.70 and 115,176.60 is: 172,764.90
Step by Step Solution
- Step 1: Write the proportion equation
171,163.80 : 256,745.70 = 115,176.60 : x - Step 2: Convert to fraction form
171,163.80/256,745.70 = 115,176.60/x - Step 3: Cross multiply
171,163.80x = 256,745.70 × 115,176.60 - Step 4: Simplify right side
171,163.80x = 29,571,096,790.62 - Step 5: Solve for x
x = 29,571,096,790.62/171,163.80 - Step 6: Final answer
x = 172,764.90
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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.