Finding the Fourth Proportional to 281,715.09, 388,594.09 and 230,107.17
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Solution
The fourth proportional to 281,715.09, 388,594.09 and 230,107.17 is: 317,406.80
Step by Step Solution
- Step 1: Write the proportion equation
281,715.09 : 388,594.09 = 230,107.17 : x - Step 2: Convert to fraction form
281,715.09/388,594.09 = 230,107.17/x - Step 3: Cross multiply
281,715.09x = 388,594.09 × 230,107.17 - Step 4: Simplify right side
281,715.09x = 89,418,286,328.63 - Step 5: Solve for x
x = 89,418,286,328.63/281,715.09 - Step 6: Final answer
x = 317,406.80
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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.