Finding the Fourth Proportional to 218,708.14, 326,863.86 and 159,668.14
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Solution
The fourth proportional to 218,708.14, 326,863.86 and 159,668.14 is: 238,627.35
Step by Step Solution
- Step 1: Write the proportion equation
218,708.14 : 326,863.86 = 159,668.14 : x - Step 2: Convert to fraction form
218,708.14/326,863.86 = 159,668.14/x - Step 3: Cross multiply
218,708.14x = 326,863.86 × 159,668.14 - Step 4: Simplify right side
218,708.14x = 52,189,744,559.42 - Step 5: Solve for x
x = 52,189,744,559.42/218,708.14 - Step 6: Final answer
x = 238,627.35
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.