Finding the Fourth Proportional to 198,198.88, 273,513.09 and 107,552.56
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Solution
The fourth proportional to 198,198.88, 273,513.09 and 107,552.56 is: 148,421.79
Step by Step Solution
- Step 1: Write the proportion equation
198,198.88 : 273,513.09 = 107,552.56 : x - Step 2: Convert to fraction form
198,198.88/273,513.09 = 107,552.56/x - Step 3: Cross multiply
198,198.88x = 273,513.09 × 107,552.56 - Step 4: Simplify right side
198,198.88x = 29,417,033,023.01 - Step 5: Solve for x
x = 29,417,033,023.01/198,198.88 - Step 6: Final answer
x = 148,421.79
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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.