Finding the Fourth Proportional to 853,187.23, 1,279,784.36 and 213,489.23
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Solution
The fourth proportional to 853,187.23, 1,279,784.36 and 213,489.23 is: 320,234.72
Step by Step Solution
- Step 1: Write the proportion equation
853,187.23 : 1,279,784.36 = 213,489.23 : x - Step 2: Convert to fraction form
853,187.23/1,279,784.36 = 213,489.23/x - Step 3: Cross multiply
853,187.23x = 1,279,784.36 × 213,489.23 - Step 4: Simplify right side
853,187.23x = 273,220,171,717.24 - Step 5: Solve for x
x = 273,220,171,717.24/853,187.23 - Step 6: Final answer
x = 320,234.72
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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.