Finding the Fourth Proportional to 196,922.50, 271,643.62 and 129,048.95
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Solution
The fourth proportional to 196,922.50, 271,643.62 and 129,048.95 is: 178,015.84
Step by Step Solution
- Step 1: Write the proportion equation
196,922.50 : 271,643.62 = 129,048.95 : x - Step 2: Convert to fraction form
196,922.50/271,643.62 = 129,048.95/x - Step 3: Cross multiply
196,922.50x = 271,643.62 × 129,048.95 - Step 4: Simplify right side
196,922.50x = 35,055,323,935.20 - Step 5: Solve for x
x = 35,055,323,935.20/196,922.50 - Step 6: Final answer
x = 178,015.84
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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.