Finding the Fourth Proportional to 203,128.20, 304,400.70 and 149,400.90
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Solution
The fourth proportional to 203,128.20, 304,400.70 and 149,400.90 is: 223,886.88
Step by Step Solution
- Step 1: Write the proportion equation
203,128.20 : 304,400.70 = 149,400.90 : x - Step 2: Convert to fraction form
203,128.20/304,400.70 = 149,400.90/x - Step 3: Cross multiply
203,128.20x = 304,400.70 × 149,400.90 - Step 4: Simplify right side
203,128.20x = 45,477,738,540.63 - Step 5: Solve for x
x = 45,477,738,540.63/203,128.20 - Step 6: Final answer
x = 223,886.88
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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.