Finding the Fourth Proportional to 178,878.24, 267,874.49 and 131,380.70
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Solution
The fourth proportional to 178,878.24, 267,874.49 and 131,380.70 is: 196,745.78
Step by Step Solution
- Step 1: Write the proportion equation
178,878.24 : 267,874.49 = 131,380.70 : x - Step 2: Convert to fraction form
178,878.24/267,874.49 = 131,380.70/x - Step 3: Cross multiply
178,878.24x = 267,874.49 × 131,380.70 - Step 4: Simplify right side
178,878.24x = 35,193,538,021.13 - Step 5: Solve for x
x = 35,193,538,021.13/178,878.24 - Step 6: Final answer
x = 196,745.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.