Finding the Fourth Proportional to 298,194.20, 447,138.08 and 87,804.80
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Solution
The fourth proportional to 298,194.20, 447,138.08 and 87,804.80 is: 131,662.08
Step by Step Solution
- Step 1: Write the proportion equation
298,194.20 : 447,138.08 = 87,804.80 : x - Step 2: Convert to fraction form
298,194.20/447,138.08 = 87,804.80/x - Step 3: Cross multiply
298,194.20x = 447,138.08 × 87,804.80 - Step 4: Simplify right side
298,194.20x = 39,260,869,686.78 - Step 5: Solve for x
x = 39,260,869,686.78/298,194.20 - Step 6: Final answer
x = 131,662.08
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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.