Finding the Fourth Proportional to 220,182.14, 303,846.19 and 129,543.95
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Solution
The fourth proportional to 220,182.14, 303,846.19 and 129,543.95 is: 178,767.61
Step by Step Solution
- Step 1: Write the proportion equation
220,182.14 : 303,846.19 = 129,543.95 : x - Step 2: Convert to fraction form
220,182.14/303,846.19 = 129,543.95/x - Step 3: Cross multiply
220,182.14x = 303,846.19 × 129,543.95 - Step 4: Simplify right side
220,182.14x = 39,361,436,080.81 - Step 5: Solve for x
x = 39,361,436,080.81/220,182.14 - Step 6: Final answer
x = 178,767.61
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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.