Finding the Fourth Proportional to 392,515.06, 541,669.25 and 220,409.09
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Solution
The fourth proportional to 392,515.06, 541,669.25 and 220,409.09 is: 304,163.68
Step by Step Solution
- Step 1: Write the proportion equation
392,515.06 : 541,669.25 = 220,409.09 : x - Step 2: Convert to fraction form
392,515.06/541,669.25 = 220,409.09/x - Step 3: Cross multiply
392,515.06x = 541,669.25 × 220,409.09 - Step 4: Simplify right side
392,515.06x = 119,388,825,371.44 - Step 5: Solve for x
x = 119,388,825,371.44/392,515.06 - Step 6: Final answer
x = 304,163.68
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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.