Finding the Fourth Proportional to 263,977.62, 396,040.24 and 86,609.18
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Solution
The fourth proportional to 263,977.62, 396,040.24 and 86,609.18 is: 129,937.99
Step by Step Solution
- Step 1: Write the proportion equation
263,977.62 : 396,040.24 = 86,609.18 : x - Step 2: Convert to fraction form
263,977.62/396,040.24 = 86,609.18/x - Step 3: Cross multiply
263,977.62x = 396,040.24 × 86,609.18 - Step 4: Simplify right side
263,977.62x = 34,300,721,531.77 - Step 5: Solve for x
x = 34,300,721,531.77/263,977.62 - Step 6: Final answer
x = 129,937.99
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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.