Finding the Fourth Proportional to 198,235.16, 273,564.78 and 107,591.12
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Solution
The fourth proportional to 198,235.16, 273,564.78 and 107,591.12 is: 148,475.88
Step by Step Solution
- Step 1: Write the proportion equation
198,235.16 : 273,564.78 = 107,591.12 : x - Step 2: Convert to fraction form
198,235.16/273,564.78 = 107,591.12/x - Step 3: Cross multiply
198,235.16x = 273,564.78 × 107,591.12 - Step 4: Simplify right side
198,235.16x = 29,433,139,166.97 - Step 5: Solve for x
x = 29,433,139,166.97/198,235.16 - Step 6: Final answer
x = 148,475.88
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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.