Finding the Fourth Proportional to 198,530.06, 273,860.60 and 121,995.99
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Solution
The fourth proportional to 198,530.06, 273,860.60 and 121,995.99 is: 168,286.33
Step by Step Solution
- Step 1: Write the proportion equation
198,530.06 : 273,860.60 = 121,995.99 : x - Step 2: Convert to fraction form
198,530.06/273,860.60 = 121,995.99/x - Step 3: Cross multiply
198,530.06x = 273,860.60 × 121,995.99 - Step 4: Simplify right side
198,530.06x = 33,409,894,409.01 - Step 5: Solve for x
x = 33,409,894,409.01/198,530.06 - Step 6: Final answer
x = 168,286.33
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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.