Finding the Fourth Proportional to 265,414.20, 398,121.30 and 202,428.60
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Solution
The fourth proportional to 265,414.20, 398,121.30 and 202,428.60 is: 303,642.90
Step by Step Solution
- Step 1: Write the proportion equation
265,414.20 : 398,121.30 = 202,428.60 : x - Step 2: Convert to fraction form
265,414.20/398,121.30 = 202,428.60/x - Step 3: Cross multiply
265,414.20x = 398,121.30 × 202,428.60 - Step 4: Simplify right side
265,414.20x = 80,591,137,389.18 - Step 5: Solve for x
x = 80,591,137,389.18/265,414.20 - Step 6: Final answer
x = 303,642.90
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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.