Finding the Fourth Proportional to 236,866.20, 326,874.70 and 129,436.92
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Solution
The fourth proportional to 236,866.20, 326,874.70 and 129,436.92 is: 178,622.59
Step by Step Solution
- Step 1: Write the proportion equation
236,866.20 : 326,874.70 = 129,436.92 : x - Step 2: Convert to fraction form
236,866.20/326,874.70 = 129,436.92/x - Step 3: Cross multiply
236,866.20x = 326,874.70 × 129,436.92 - Step 4: Simplify right side
236,866.20x = 42,309,654,393.92 - Step 5: Solve for x
x = 42,309,654,393.92/236,866.20 - Step 6: Final answer
x = 178,622.59
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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.