Finding the Fourth Proportional to 211,190.35, 316,786.58 and 53,418.96
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Solution
The fourth proportional to 211,190.35, 316,786.58 and 53,418.96 is: 80,128.70
Step by Step Solution
- Step 1: Write the proportion equation
211,190.35 : 316,786.58 = 53,418.96 : x - Step 2: Convert to fraction form
211,190.35/316,786.58 = 53,418.96/x - Step 3: Cross multiply
211,190.35x = 316,786.58 × 53,418.96 - Step 4: Simplify right side
211,190.35x = 16,922,407,794.53 - Step 5: Solve for x
x = 16,922,407,794.53/211,190.35 - Step 6: Final answer
x = 80,128.70
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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.