Finding the Fourth Proportional to 211,134.96, 316,371.84 and 126,687.60
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Solution
The fourth proportional to 211,134.96, 316,371.84 and 126,687.60 is: 189,833.03
Step by Step Solution
- Step 1: Write the proportion equation
211,134.96 : 316,371.84 = 126,687.60 : x - Step 2: Convert to fraction form
211,134.96/316,371.84 = 126,687.60/x - Step 3: Cross multiply
211,134.96x = 316,371.84 × 126,687.60 - Step 4: Simplify right side
211,134.96x = 40,080,389,117.18 - Step 5: Solve for x
x = 40,080,389,117.18/211,134.96 - Step 6: Final answer
x = 189,833.03
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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.