Finding the Fourth Proportional to 188,685.65, 260,759.79 and 154,640.44
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Solution
The fourth proportional to 188,685.65, 260,759.79 and 154,640.44 is: 213,709.99
Step by Step Solution
- Step 1: Write the proportion equation
188,685.65 : 260,759.79 = 154,640.44 : x - Step 2: Convert to fraction form
188,685.65/260,759.79 = 154,640.44/x - Step 3: Cross multiply
188,685.65x = 260,759.79 × 154,640.44 - Step 4: Simplify right side
188,685.65x = 40,324,008,659.91 - Step 5: Solve for x
x = 40,324,008,659.91/188,685.65 - Step 6: Final answer
x = 213,709.99
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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.