Finding the Fourth Proportional to 285,914.12, 394,558.63 and 158,586.44
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Solution
The fourth proportional to 285,914.12, 394,558.63 and 158,586.44 is: 218,847.70
Step by Step Solution
- Step 1: Write the proportion equation
285,914.12 : 394,558.63 = 158,586.44 : x - Step 2: Convert to fraction form
285,914.12/394,558.63 = 158,586.44/x - Step 3: Cross multiply
285,914.12x = 394,558.63 × 158,586.44 - Step 4: Simplify right side
285,914.12x = 62,571,646,133.72 - Step 5: Solve for x
x = 62,571,646,133.72/285,914.12 - Step 6: Final answer
x = 218,847.70
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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.