Finding the Fourth Proportional to 236,911.23, 326,936.71 and 129,481.23
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Solution
The fourth proportional to 236,911.23, 326,936.71 and 129,481.23 is: 178,683.67
Step by Step Solution
- Step 1: Write the proportion equation
236,911.23 : 326,936.71 = 129,481.23 : x - Step 2: Convert to fraction form
236,911.23/326,936.71 = 129,481.23/x - Step 3: Cross multiply
236,911.23x = 326,936.71 × 129,481.23 - Step 4: Simplify right side
236,911.23x = 42,332,167,019.25 - Step 5: Solve for x
x = 42,332,167,019.25/236,911.23 - Step 6: Final answer
x = 178,683.67
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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.