Finding the Fourth Proportional to 202,321.20, 303,481.80 and 69,205.80
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Solution
The fourth proportional to 202,321.20, 303,481.80 and 69,205.80 is: 103,808.70
Step by Step Solution
- Step 1: Write the proportion equation
202,321.20 : 303,481.80 = 69,205.80 : x - Step 2: Convert to fraction form
202,321.20/303,481.80 = 69,205.80/x - Step 3: Cross multiply
202,321.20x = 303,481.80 × 69,205.80 - Step 4: Simplify right side
202,321.20x = 21,002,700,754.44 - Step 5: Solve for x
x = 21,002,700,754.44/202,321.20 - Step 6: Final answer
x = 103,808.70
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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.