Finding the Fourth Proportional to 198,531.90, 273,976.70 and 107,889.26
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Solution
The fourth proportional to 198,531.90, 273,976.70 and 107,889.26 is: 148,888.62
Step by Step Solution
- Step 1: Write the proportion equation
198,531.90 : 273,976.70 = 107,889.26 : x - Step 2: Convert to fraction form
198,531.90/273,976.70 = 107,889.26/x - Step 3: Cross multiply
198,531.90x = 273,976.70 × 107,889.26 - Step 4: Simplify right side
198,531.90x = 29,559,141,510.91 - Step 5: Solve for x
x = 29,559,141,510.91/198,531.90 - Step 6: Final answer
x = 148,888.62
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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.