Finding the Fourth Proportional to 206,481.87, 309,657.18 and 140,346.99
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Solution
The fourth proportional to 206,481.87, 309,657.18 and 140,346.99 is: 210,475.88
Step by Step Solution
- Step 1: Write the proportion equation
206,481.87 : 309,657.18 = 140,346.99 : x - Step 2: Convert to fraction form
206,481.87/309,657.18 = 140,346.99/x - Step 3: Cross multiply
206,481.87x = 309,657.18 × 140,346.99 - Step 4: Simplify right side
206,481.87x = 43,459,453,144.89 - Step 5: Solve for x
x = 43,459,453,144.89/206,481.87 - Step 6: Final answer
x = 210,475.88
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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.