Finding the Fourth Proportional to 198,344.53, 273,902.29 and 138,079.98
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Solution
The fourth proportional to 198,344.53, 273,902.29 and 138,079.98 is: 190,680.44
Step by Step Solution
- Step 1: Write the proportion equation
198,344.53 : 273,902.29 = 138,079.98 : x - Step 2: Convert to fraction form
198,344.53/273,902.29 = 138,079.98/x - Step 3: Cross multiply
198,344.53x = 273,902.29 × 138,079.98 - Step 4: Simplify right side
198,344.53x = 37,820,422,725.15 - Step 5: Solve for x
x = 37,820,422,725.15/198,344.53 - Step 6: Final answer
x = 190,680.44
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1.5x scale
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.