Finding the Fourth Proportional to 229,763.36, 317,101.92 and 129,161.36
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Solution
The fourth proportional to 229,763.36, 317,101.92 and 129,161.36 is: 178,258.69
Step by Step Solution
- Step 1: Write the proportion equation
229,763.36 : 317,101.92 = 129,161.36 : x - Step 2: Convert to fraction form
229,763.36/317,101.92 = 129,161.36/x - Step 3: Cross multiply
229,763.36x = 317,101.92 × 129,161.36 - Step 4: Simplify right side
229,763.36x = 40,957,315,245.81 - Step 5: Solve for x
x = 40,957,315,245.81/229,763.36 - Step 6: Final answer
x = 178,258.69
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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.