Finding the Fourth Proportional to 285,670.80, 394,197.84 and 158,343.66
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Solution
The fourth proportional to 285,670.80, 394,197.84 and 158,343.66 is: 218,498.81
Step by Step Solution
- Step 1: Write the proportion equation
285,670.80 : 394,197.84 = 158,343.66 : x - Step 2: Convert to fraction form
285,670.80/394,197.84 = 158,343.66/x - Step 3: Cross multiply
285,670.80x = 394,197.84 × 158,343.66 - Step 4: Simplify right side
285,670.80x = 62,418,728,749.69 - Step 5: Solve for x
x = 62,418,728,749.69/285,670.80 - Step 6: Final answer
x = 218,498.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.