Finding the Fourth Proportional to 311,630.81, 467,656.55 and 122,067.66
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Solution
The fourth proportional to 311,630.81, 467,656.55 and 122,067.66 is: 183,183.88
Step by Step Solution
- Step 1: Write the proportion equation
311,630.81 : 467,656.55 = 122,067.66 : x - Step 2: Convert to fraction form
311,630.81/467,656.55 = 122,067.66/x - Step 3: Cross multiply
311,630.81x = 467,656.55 × 122,067.66 - Step 4: Simplify right side
311,630.81x = 57,085,741,300.98 - Step 5: Solve for x
x = 57,085,741,300.98/311,630.81 - Step 6: Final answer
x = 183,183.88
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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.