Finding the Fourth Proportional to 289,810.20, 434,715.30 and 201,163.80
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Solution
The fourth proportional to 289,810.20, 434,715.30 and 201,163.80 is: 301,745.70
Step by Step Solution
- Step 1: Write the proportion equation
289,810.20 : 434,715.30 = 201,163.80 : x - Step 2: Convert to fraction form
289,810.20/434,715.30 = 201,163.80/x - Step 3: Cross multiply
289,810.20x = 434,715.30 × 201,163.80 - Step 4: Simplify right side
289,810.20x = 87,448,981,666.14 - Step 5: Solve for x
x = 87,448,981,666.14/289,810.20 - Step 6: Final answer
x = 301,745.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.