Finding the Fourth Proportional to 330,163.60, 495,245.40 and 310,480.60
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Solution
The fourth proportional to 330,163.60, 495,245.40 and 310,480.60 is: 465,720.90
Step by Step Solution
- Step 1: Write the proportion equation
330,163.60 : 495,245.40 = 310,480.60 : x - Step 2: Convert to fraction form
330,163.60/495,245.40 = 310,480.60/x - Step 3: Cross multiply
330,163.60x = 495,245.40 × 310,480.60 - Step 4: Simplify right side
330,163.60x = 153,764,088,939.24 - Step 5: Solve for x
x = 153,764,088,939.24/330,163.60 - Step 6: Final answer
x = 465,720.90
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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.