Finding the Fourth Proportional to 388,383.36, 582,578.88 and 122,137.92
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Solution
The fourth proportional to 388,383.36, 582,578.88 and 122,137.92 is: 183,208.09
Step by Step Solution
- Step 1: Write the proportion equation
388,383.36 : 582,578.88 = 122,137.92 : x - Step 2: Convert to fraction form
388,383.36/582,578.88 = 122,137.92/x - Step 3: Cross multiply
388,383.36x = 582,578.88 × 122,137.92 - Step 4: Simplify right side
388,383.36x = 71,154,972,639.13 - Step 5: Solve for x
x = 71,154,972,639.13/388,383.36 - Step 6: Final answer
x = 183,208.09
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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.