Finding the Fourth Proportional to 202,122.30, 303,183.45 and 68,958.30
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Solution
The fourth proportional to 202,122.30, 303,183.45 and 68,958.30 is: 103,437.45
Step by Step Solution
- Step 1: Write the proportion equation
202,122.30 : 303,183.45 = 68,958.30 : x - Step 2: Convert to fraction form
202,122.30/303,183.45 = 68,958.30/x - Step 3: Cross multiply
202,122.30x = 303,183.45 × 68,958.30 - Step 4: Simplify right side
202,122.30x = 20,907,015,300.14 - Step 5: Solve for x
x = 20,907,015,300.14/202,122.30 - Step 6: Final answer
x = 103,437.45
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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.