Finding the Fourth Proportional to 196,990.44, 271,751.94 and 128,977.44
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Solution
The fourth proportional to 196,990.44, 271,751.94 and 128,977.44 is: 177,926.75
Step by Step Solution
- Step 1: Write the proportion equation
196,990.44 : 271,751.94 = 128,977.44 : x - Step 2: Convert to fraction form
196,990.44/271,751.94 = 128,977.44/x - Step 3: Cross multiply
196,990.44x = 271,751.94 × 128,977.44 - Step 4: Simplify right side
196,990.44x = 35,049,869,536.23 - Step 5: Solve for x
x = 35,049,869,536.23/196,990.44 - Step 6: Final answer
x = 177,926.75
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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.