Finding the Fourth Proportional to 285,860.81, 394,435.74 and 164,957.98
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Solution
The fourth proportional to 285,860.81, 394,435.74 and 164,957.98 is: 227,611.90
Step by Step Solution
- Step 1: Write the proportion equation
285,860.81 : 394,435.74 = 164,957.98 : x - Step 2: Convert to fraction form
285,860.81/394,435.74 = 164,957.98/x - Step 3: Cross multiply
285,860.81x = 394,435.74 × 164,957.98 - Step 4: Simplify right side
285,860.81x = 65,065,322,910.21 - Step 5: Solve for x
x = 65,065,322,910.21/285,860.81 - Step 6: Final answer
x = 227,611.90
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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.