Finding the Fourth Proportional to 236,635.70, 326,570.49 and 129,215.70
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Solution
The fourth proportional to 236,635.70, 326,570.49 and 129,215.70 is: 178,324.89
Step by Step Solution
- Step 1: Write the proportion equation
236,635.70 : 326,570.49 = 129,215.70 : x - Step 2: Convert to fraction form
236,635.70/326,570.49 = 129,215.70/x - Step 3: Cross multiply
236,635.70x = 326,570.49 × 129,215.70 - Step 4: Simplify right side
236,635.70x = 42,198,034,464.69 - Step 5: Solve for x
x = 42,198,034,464.69/236,635.70 - Step 6: Final answer
x = 178,324.89
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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.