Finding the Fourth Proportional to 355,661.14, 490,805.48 and 194,515.68
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Solution
The fourth proportional to 355,661.14, 490,805.48 and 194,515.68 is: 268,427.87
Step by Step Solution
- Step 1: Write the proportion equation
355,661.14 : 490,805.48 = 194,515.68 : x - Step 2: Convert to fraction form
355,661.14/490,805.48 = 194,515.68/x - Step 3: Cross multiply
355,661.14x = 490,805.48 × 194,515.68 - Step 4: Simplify right side
355,661.14x = 95,469,361,689.93 - Step 5: Solve for x
x = 95,469,361,689.93/355,661.14 - Step 6: Final answer
x = 268,427.87
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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.