Finding the Fourth Proportional to 355,288.20, 490,283.08 and 194,148.80
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Solution
The fourth proportional to 355,288.20, 490,283.08 and 194,148.80 is: 267,917.35
Step by Step Solution
- Step 1: Write the proportion equation
355,288.20 : 490,283.08 = 194,148.80 : x - Step 2: Convert to fraction form
355,288.20/490,283.08 = 194,148.80/x - Step 3: Cross multiply
355,288.20x = 490,283.08 × 194,148.80 - Step 4: Simplify right side
355,288.20x = 95,187,871,642.30 - Step 5: Solve for x
x = 95,187,871,642.30/355,288.20 - Step 6: Final answer
x = 267,917.35
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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.