Finding the Fourth Proportional to 272,439.26, 408,694.60 and 90,009.46
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Solution
The fourth proportional to 272,439.26, 408,694.60 and 90,009.46 is: 135,025.99
Step by Step Solution
- Step 1: Write the proportion equation
272,439.26 : 408,694.60 = 90,009.46 : x - Step 2: Convert to fraction form
272,439.26/408,694.60 = 90,009.46/x - Step 3: Cross multiply
272,439.26x = 408,694.60 × 90,009.46 - Step 4: Simplify right side
272,439.26x = 36,786,380,250.92 - Step 5: Solve for x
x = 36,786,380,250.92/272,439.26 - Step 6: Final answer
x = 135,025.99
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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.