Finding the Fourth Proportional to 202,201.20, 303,107.40 and 157,197.60
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Solution
The fourth proportional to 202,201.20, 303,107.40 and 157,197.60 is: 235,645.27
Step by Step Solution
- Step 1: Write the proportion equation
202,201.20 : 303,107.40 = 157,197.60 : x - Step 2: Convert to fraction form
202,201.20/303,107.40 = 157,197.60/x - Step 3: Cross multiply
202,201.20x = 303,107.40 × 157,197.60 - Step 4: Simplify right side
202,201.20x = 47,647,755,822.24 - Step 5: Solve for x
x = 47,647,755,822.24/202,201.20 - Step 6: Final answer
x = 235,645.27
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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.