Finding the Fourth Proportional to 198,245.12, 273,572.16 and 107,596.80
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Solution
The fourth proportional to 198,245.12, 273,572.16 and 107,596.80 is: 148,480.27
Step by Step Solution
- Step 1: Write the proportion equation
198,245.12 : 273,572.16 = 107,596.80 : x - Step 2: Convert to fraction form
198,245.12/273,572.16 = 107,596.80/x - Step 3: Cross multiply
198,245.12x = 273,572.16 × 107,596.80 - Step 4: Simplify right side
198,245.12x = 29,435,488,985.09 - Step 5: Solve for x
x = 29,435,488,985.09/198,245.12 - Step 6: Final answer
x = 148,480.27
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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.