Finding the Fourth Proportional to 208,657.26, 312,847.38 and 75,520.08
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Solution
The fourth proportional to 208,657.26, 312,847.38 and 75,520.08 is: 113,229.99
Step by Step Solution
- Step 1: Write the proportion equation
208,657.26 : 312,847.38 = 75,520.08 : x - Step 2: Convert to fraction form
208,657.26/312,847.38 = 75,520.08/x - Step 3: Cross multiply
208,657.26x = 312,847.38 × 75,520.08 - Step 4: Simplify right side
208,657.26x = 23,626,259,165.39 - Step 5: Solve for x
x = 23,626,259,165.39/208,657.26 - Step 6: Final answer
x = 113,229.99
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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.