Finding the Fourth Proportional to 198,438.14, 273,849.57 and 107,794.08
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Solution
The fourth proportional to 198,438.14, 273,849.57 and 107,794.08 is: 148,758.51
Step by Step Solution
- Step 1: Write the proportion equation
198,438.14 : 273,849.57 = 107,794.08 : x - Step 2: Convert to fraction form
198,438.14/273,849.57 = 107,794.08/x - Step 3: Cross multiply
198,438.14x = 273,849.57 × 107,794.08 - Step 4: Simplify right side
198,438.14x = 29,519,362,456.55 - Step 5: Solve for x
x = 29,519,362,456.55/198,438.14 - Step 6: Final answer
x = 148,758.51
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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.