Finding the Fourth Proportional to 216,021.80, 323,879.10 and 82,850.60
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Solution
The fourth proportional to 216,021.80, 323,879.10 and 82,850.60 is: 124,216.99
Step by Step Solution
- Step 1: Write the proportion equation
216,021.80 : 323,879.10 = 82,850.60 : x - Step 2: Convert to fraction form
216,021.80/323,879.10 = 82,850.60/x - Step 3: Cross multiply
216,021.80x = 323,879.10 × 82,850.60 - Step 4: Simplify right side
216,021.80x = 26,833,577,762.46 - Step 5: Solve for x
x = 26,833,577,762.46/216,021.80 - Step 6: Final answer
x = 124,216.99
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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.