Finding the Fourth Proportional to 198,573.51, 274,033.26 and 107,929.68
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Solution
The fourth proportional to 198,573.51, 274,033.26 and 107,929.68 is: 148,943.95
Step by Step Solution
- Step 1: Write the proportion equation
198,573.51 : 274,033.26 = 107,929.68 : x - Step 2: Convert to fraction form
198,573.51/274,033.26 = 107,929.68/x - Step 3: Cross multiply
198,573.51x = 274,033.26 × 107,929.68 - Step 4: Simplify right side
198,573.51x = 29,576,322,574.97 - Step 5: Solve for x
x = 29,576,322,574.97/198,573.51 - Step 6: Final answer
x = 148,943.95
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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.