Finding the Fourth Proportional to 394,183.67, 543,937.73 and 222,129.63
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Solution
The fourth proportional to 394,183.67, 543,937.73 and 222,129.63 is: 306,518.75
Step by Step Solution
- Step 1: Write the proportion equation
394,183.67 : 543,937.73 = 222,129.63 : x - Step 2: Convert to fraction form
394,183.67/543,937.73 = 222,129.63/x - Step 3: Cross multiply
394,183.67x = 543,937.73 × 222,129.63 - Step 4: Simplify right side
394,183.67x = 120,824,685,597.29 - Step 5: Solve for x
x = 120,824,685,597.29/394,183.67 - Step 6: Final answer
x = 306,518.75
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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.