Finding the Fourth Proportional to 394,088.21, 591,215.36 and 127,827.97
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Solution
The fourth proportional to 394,088.21, 591,215.36 and 127,827.97 is: 191,768.88
Step by Step Solution
- Step 1: Write the proportion equation
394,088.21 : 591,215.36 = 127,827.97 : x - Step 2: Convert to fraction form
394,088.21/591,215.36 = 127,827.97/x - Step 3: Cross multiply
394,088.21x = 591,215.36 × 127,827.97 - Step 4: Simplify right side
394,088.21x = 75,573,856,768.75 - Step 5: Solve for x
x = 75,573,856,768.75/394,088.21 - Step 6: Final answer
x = 191,768.88
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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.