Finding the Fourth Proportional to 394,260.20, 591,439.47 and 154,343.09
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Solution
The fourth proportional to 394,260.20, 591,439.47 and 154,343.09 is: 231,533.88
Step by Step Solution
- Step 1: Write the proportion equation
394,260.20 : 591,439.47 = 154,343.09 : x - Step 2: Convert to fraction form
394,260.20/591,439.47 = 154,343.09/x - Step 3: Cross multiply
394,260.20x = 591,439.47 × 154,343.09 - Step 4: Simplify right side
394,260.20x = 91,284,595,347.76 - Step 5: Solve for x
x = 91,284,595,347.76/394,260.20 - Step 6: Final answer
x = 231,533.88
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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.