Finding the Fourth Proportional to 202,107.20, 278,912.42 and 111,465.88
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Solution
The fourth proportional to 202,107.20, 278,912.42 and 111,465.88 is: 153,825.39
Step by Step Solution
- Step 1: Write the proportion equation
202,107.20 : 278,912.42 = 111,465.88 : x - Step 2: Convert to fraction form
202,107.20/278,912.42 = 111,465.88/x - Step 3: Cross multiply
202,107.20x = 278,912.42 × 111,465.88 - Step 4: Simplify right side
202,107.20x = 31,089,218,338.23 - Step 5: Solve for x
x = 31,089,218,338.23/202,107.20 - Step 6: Final answer
x = 153,825.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.