Finding the Fourth Proportional to 198,367.25, 273,933.63 and 138,102.67
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Solution
The fourth proportional to 198,367.25, 273,933.63 and 138,102.67 is: 190,711.75
Step by Step Solution
- Step 1: Write the proportion equation
198,367.25 : 273,933.63 = 138,102.67 : x - Step 2: Convert to fraction form
198,367.25/273,933.63 = 138,102.67/x - Step 3: Cross multiply
198,367.25x = 273,933.63 × 138,102.67 - Step 4: Simplify right side
198,367.25x = 37,830,965,705.79 - Step 5: Solve for x
x = 37,830,965,705.79/198,367.25 - Step 6: Final answer
x = 190,711.75
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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.