Finding the Third Proportional to 290,517.75 and 408,390.75
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Solution
The third proportional to 290,517.75 and 408,390.75 is: 574,088.86
Step by Step Solution
- Step 1: Write the proportion equation
290,517.75 : 408,390.75 = 408,390.75 : x - Step 2: Convert to fraction form
290,517.75/408,390.75 = 408,390.75/x - Step 3: Cross multiply
290,517.75x = 408,390.75 × 408,390.75 - Step 4: Simplify right side
290,517.75x = 166,783,004,685.56 - Step 5: Solve for x
x = 166,783,004,685.56/290,517.75 - Step 6: Final answer
x = 574,088.86
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These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.