Finding the Fourth Proportional to 355,226.70, 490,207.11 and 194,078.28
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Solution
The fourth proportional to 355,226.70, 490,207.11 and 194,078.28 is: 267,824.89
Step by Step Solution
- Step 1: Write the proportion equation
355,226.70 : 490,207.11 = 194,078.28 : x - Step 2: Convert to fraction form
355,226.70/490,207.11 = 194,078.28/x - Step 3: Cross multiply
355,226.70x = 490,207.11 × 194,078.28 - Step 4: Simplify right side
355,226.70x = 95,138,552,752.57 - Step 5: Solve for x
x = 95,138,552,752.57/355,226.70 - Step 6: Final answer
x = 267,824.89
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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.