Finding the Fourth Proportional to 327,207.40, 490,811.10 and 221,453.80
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Solution
The fourth proportional to 327,207.40, 490,811.10 and 221,453.80 is: 332,180.70
Step by Step Solution
- Step 1: Write the proportion equation
327,207.40 : 490,811.10 = 221,453.80 : x - Step 2: Convert to fraction form
327,207.40/490,811.10 = 221,453.80/x - Step 3: Cross multiply
327,207.40x = 490,811.10 × 221,453.80 - Step 4: Simplify right side
327,207.40x = 108,691,983,177.18 - Step 5: Solve for x
x = 108,691,983,177.18/327,207.40 - Step 6: Final answer
x = 332,180.70
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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.