Finding the Fourth Proportional to 263,251.08, 394,918.74 and 85,744.44
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Solution
The fourth proportional to 263,251.08, 394,918.74 and 85,744.44 is: 128,630.38
Step by Step Solution
- Step 1: Write the proportion equation
263,251.08 : 394,918.74 = 85,744.44 : x - Step 2: Convert to fraction form
263,251.08/394,918.74 = 85,744.44/x - Step 3: Cross multiply
263,251.08x = 394,918.74 × 85,744.44 - Step 4: Simplify right side
263,251.08x = 33,862,086,206.81 - Step 5: Solve for x
x = 33,862,086,206.81/263,251.08 - Step 6: Final answer
x = 128,630.38
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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.