Finding the Fourth Proportional to 215,842.15, 323,578.62 and 82,817.88
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Solution
The fourth proportional to 215,842.15, 323,578.62 and 82,817.88 is: 124,155.99
Step by Step Solution
- Step 1: Write the proportion equation
215,842.15 : 323,578.62 = 82,817.88 : x - Step 2: Convert to fraction form
215,842.15/323,578.62 = 82,817.88/x - Step 3: Cross multiply
215,842.15x = 323,578.62 × 82,817.88 - Step 4: Simplify right side
215,842.15x = 26,798,095,321.73 - Step 5: Solve for x
x = 26,798,095,321.73/215,842.15 - Step 6: Final answer
x = 124,155.99
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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.