Finding the Fourth Proportional to 394,202.08, 543,998.70 and 212,913.94
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Solution
The fourth proportional to 394,202.08, 543,998.70 and 212,913.94 is: 293,821.15
Step by Step Solution
- Step 1: Write the proportion equation
394,202.08 : 543,998.70 = 212,913.94 : x - Step 2: Convert to fraction form
394,202.08/543,998.70 = 212,913.94/x - Step 3: Cross multiply
394,202.08x = 543,998.70 × 212,913.94 - Step 4: Simplify right side
394,202.08x = 115,824,906,571.88 - Step 5: Solve for x
x = 115,824,906,571.88/394,202.08 - Step 6: Final answer
x = 293,821.15
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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.