Finding the Fourth Proportional to 355,245.09, 490,223.79 and 194,105.71
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Solution
The fourth proportional to 355,245.09, 490,223.79 and 194,105.71 is: 267,857.99
Step by Step Solution
- Step 1: Write the proportion equation
355,245.09 : 490,223.79 = 194,105.71 : x - Step 2: Convert to fraction form
355,245.09/490,223.79 = 194,105.71/x - Step 3: Cross multiply
355,245.09x = 490,223.79 × 194,105.71 - Step 4: Simplify right side
355,245.09x = 95,155,236,816.84 - Step 5: Solve for x
x = 95,155,236,816.84/355,245.09 - Step 6: Final answer
x = 267,857.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.