Finding the Fourth Proportional to 289,169.36, 398,850.88 and 201,808.62
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Solution
The fourth proportional to 289,169.36, 398,850.88 and 201,808.62 is: 278,354.34
Step by Step Solution
- Step 1: Write the proportion equation
289,169.36 : 398,850.88 = 201,808.62 : x - Step 2: Convert to fraction form
289,169.36/398,850.88 = 201,808.62/x - Step 3: Cross multiply
289,169.36x = 398,850.88 × 201,808.62 - Step 4: Simplify right side
289,169.36x = 80,491,545,678.59 - Step 5: Solve for x
x = 80,491,545,678.59/289,169.36 - Step 6: Final answer
x = 278,354.34
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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.