Finding the Fourth Proportional to 407,794.40, 611,535.60 and 134,176.88
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Solution
The fourth proportional to 407,794.40, 611,535.60 and 134,176.88 is: 201,213.99
Step by Step Solution
- Step 1: Write the proportion equation
407,794.40 : 611,535.60 = 134,176.88 : x - Step 2: Convert to fraction form
407,794.40/611,535.60 = 134,176.88/x - Step 3: Cross multiply
407,794.40x = 611,535.60 × 134,176.88 - Step 4: Simplify right side
407,794.40x = 82,053,938,816.93 - Step 5: Solve for x
x = 82,053,938,816.93/407,794.40 - Step 6: Final answer
x = 201,213.99
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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.