Finding the Fourth Proportional to 286,361.98, 394,915.44 and 194,618.14
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Solution
The fourth proportional to 286,361.98, 394,915.44 and 194,618.14 is: 268,393.55
Step by Step Solution
- Step 1: Write the proportion equation
286,361.98 : 394,915.44 = 194,618.14 : x - Step 2: Convert to fraction form
286,361.98/394,915.44 = 194,618.14/x - Step 3: Cross multiply
286,361.98x = 394,915.44 × 194,618.14 - Step 4: Simplify right side
286,361.98x = 76,857,708,390.08 - Step 5: Solve for x
x = 76,857,708,390.08/286,361.98 - Step 6: Final answer
x = 268,393.55
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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.