Finding the Fourth Proportional to 198,453.98, 273,868.39 and 107,810.63
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Solution
The fourth proportional to 198,453.98, 273,868.39 and 107,810.63 is: 148,779.70
Step by Step Solution
- Step 1: Write the proportion equation
198,453.98 : 273,868.39 = 107,810.63 : x - Step 2: Convert to fraction form
198,453.98/273,868.39 = 107,810.63/x - Step 3: Cross multiply
198,453.98x = 273,868.39 × 107,810.63 - Step 4: Simplify right side
198,453.98x = 29,525,923,455.41 - Step 5: Solve for x
x = 29,525,923,455.41/198,453.98 - Step 6: Final answer
x = 148,779.70
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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.