Finding the Fourth Proportional to 330,163.80, 495,245.70 and 251,431.80
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Solution
The fourth proportional to 330,163.80, 495,245.70 and 251,431.80 is: 377,147.70
Step by Step Solution
- Step 1: Write the proportion equation
330,163.80 : 495,245.70 = 251,431.80 : x - Step 2: Convert to fraction form
330,163.80/495,245.70 = 251,431.80/x - Step 3: Cross multiply
330,163.80x = 495,245.70 × 251,431.80 - Step 4: Simplify right side
330,163.80x = 124,520,517,793.26 - Step 5: Solve for x
x = 124,520,517,793.26/330,163.80 - Step 6: Final answer
x = 377,147.70
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1.5x scale
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.