Finding the Fourth Proportional to 326,847.30, 490,299.21 and 90,189.99
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Solution
The fourth proportional to 326,847.30, 490,299.21 and 90,189.99 is: 135,292.78
Step by Step Solution
- Step 1: Write the proportion equation
326,847.30 : 490,299.21 = 90,189.99 : x - Step 2: Convert to fraction form
326,847.30/490,299.21 = 90,189.99/x - Step 3: Cross multiply
326,847.30x = 490,299.21 × 90,189.99 - Step 4: Simplify right side
326,847.30x = 44,220,080,846.91 - Step 5: Solve for x
x = 44,220,080,846.91/326,847.30 - Step 6: Final answer
x = 135,292.78
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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.