Finding the Fourth Proportional to 355,213.26, 490,201.35 and 194,078.29
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Solution
The fourth proportional to 355,213.26, 490,201.35 and 194,078.29 is: 267,831.89
Step by Step Solution
- Step 1: Write the proportion equation
355,213.26 : 490,201.35 = 194,078.29 : x - Step 2: Convert to fraction form
355,213.26/490,201.35 = 194,078.29/x - Step 3: Cross multiply
355,213.26x = 490,201.35 × 194,078.29 - Step 4: Simplify right side
355,213.26x = 95,137,439,763.69 - Step 5: Solve for x
x = 95,137,439,763.69/355,213.26 - Step 6: Final answer
x = 267,831.89
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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.