Finding the Fourth Proportional to 216,668.75, 298,976.63 and 119,866.05
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Solution
The fourth proportional to 216,668.75, 298,976.63 and 119,866.05 is: 165,400.63
Step by Step Solution
- Step 1: Write the proportion equation
216,668.75 : 298,976.63 = 119,866.05 : x - Step 2: Convert to fraction form
216,668.75/298,976.63 = 119,866.05/x - Step 3: Cross multiply
216,668.75x = 298,976.63 × 119,866.05 - Step 4: Simplify right side
216,668.75x = 35,837,147,081.08 - Step 5: Solve for x
x = 35,837,147,081.08/216,668.75 - Step 6: Final answer
x = 165,400.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.