Finding the Fourth Proportional to 206,093.60, 309,161.28 and 71,140.08
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Solution
The fourth proportional to 206,093.60, 309,161.28 and 71,140.08 is: 106,717.33
Step by Step Solution
- Step 1: Write the proportion equation
206,093.60 : 309,161.28 = 71,140.08 : x - Step 2: Convert to fraction form
206,093.60/309,161.28 = 71,140.08/x - Step 3: Cross multiply
206,093.60x = 309,161.28 × 71,140.08 - Step 4: Simplify right side
206,093.60x = 21,993,758,192.10 - Step 5: Solve for x
x = 21,993,758,192.10/206,093.60 - Step 6: Final answer
x = 106,717.33
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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.