Finding the Fourth Proportional to 198,235.21, 273,564.86 and 107,591.18
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Solution
The fourth proportional to 198,235.21, 273,564.86 and 107,591.18 is: 148,475.98
Step by Step Solution
- Step 1: Write the proportion equation
198,235.21 : 273,564.86 = 107,591.18 : x - Step 2: Convert to fraction form
198,235.21/273,564.86 = 107,591.18/x - Step 3: Cross multiply
198,235.21x = 273,564.86 × 107,591.18 - Step 4: Simplify right side
198,235.21x = 29,433,166,093.93 - Step 5: Solve for x
x = 29,433,166,093.93/198,235.21 - Step 6: Final answer
x = 148,475.98
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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.