Finding the Fourth Proportional to 306,302.82, 422,635.92 and 178,953.84
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Solution
The fourth proportional to 306,302.82, 422,635.92 and 178,953.84 is: 246,920.09
Step by Step Solution
- Step 1: Write the proportion equation
306,302.82 : 422,635.92 = 178,953.84 : x - Step 2: Convert to fraction form
306,302.82/422,635.92 = 178,953.84/x - Step 3: Cross multiply
306,302.82x = 422,635.92 × 178,953.84 - Step 4: Simplify right side
306,302.82x = 75,632,320,805.93 - Step 5: Solve for x
x = 75,632,320,805.93/306,302.82 - Step 6: Final answer
x = 246,920.09
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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.