Finding the Fourth Proportional to 236,716.19, 326,675.42 and 129,291.29
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Solution
The fourth proportional to 236,716.19, 326,675.42 and 129,291.29 is: 178,425.85
Step by Step Solution
- Step 1: Write the proportion equation
236,716.19 : 326,675.42 = 129,291.29 : x - Step 2: Convert to fraction form
236,716.19/326,675.42 = 129,291.29/x - Step 3: Cross multiply
236,716.19x = 326,675.42 × 129,291.29 - Step 4: Simplify right side
236,716.19x = 42,236,286,463.09 - Step 5: Solve for x
x = 42,236,286,463.09/236,716.19 - Step 6: Final answer
x = 178,425.85
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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.