Finding the Fourth Proportional to 216,863.17, 325,213.95 and 74,668.68
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Solution
The fourth proportional to 216,863.17, 325,213.95 and 74,668.68 is: 111,975.20
Step by Step Solution
- Step 1: Write the proportion equation
216,863.17 : 325,213.95 = 74,668.68 : x - Step 2: Convert to fraction form
216,863.17/325,213.95 = 74,668.68/x - Step 3: Cross multiply
216,863.17x = 325,213.95 × 74,668.68 - Step 4: Simplify right side
216,863.17x = 24,283,296,644.09 - Step 5: Solve for x
x = 24,283,296,644.09/216,863.17 - Step 6: Final answer
x = 111,975.20
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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.