Finding the Fourth Proportional to 355,283.20, 490,276.18 and 194,143.80
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Solution
The fourth proportional to 355,283.20, 490,276.18 and 194,143.80 is: 267,910.45
Step by Step Solution
- Step 1: Write the proportion equation
355,283.20 : 490,276.18 = 194,143.80 : x - Step 2: Convert to fraction form
355,283.20/490,276.18 = 194,143.80/x - Step 3: Cross multiply
355,283.20x = 490,276.18 × 194,143.80 - Step 4: Simplify right side
355,283.20x = 95,184,080,634.68 - Step 5: Solve for x
x = 95,184,080,634.68/355,283.20 - Step 6: Final answer
x = 267,910.45
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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.