Finding the Fourth Proportional to 263,742.36, 395,334.63 and 86,201.70
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Solution
The fourth proportional to 263,742.36, 395,334.63 and 86,201.70 is: 129,211.39
Step by Step Solution
- Step 1: Write the proportion equation
263,742.36 : 395,334.63 = 86,201.70 : x - Step 2: Convert to fraction form
263,742.36/395,334.63 = 86,201.70/x - Step 3: Cross multiply
263,742.36x = 395,334.63 × 86,201.70 - Step 4: Simplify right side
263,742.36x = 34,078,517,174.87 - Step 5: Solve for x
x = 34,078,517,174.87/263,742.36 - Step 6: Final answer
x = 129,211.39
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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.