Finding the Fourth Proportional to 236,920.52, 326,941.43 and 129,489.68
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Solution
The fourth proportional to 236,920.52, 326,941.43 and 129,489.68 is: 178,690.90
Step by Step Solution
- Step 1: Write the proportion equation
236,920.52 : 326,941.43 = 129,489.68 : x - Step 2: Convert to fraction form
236,920.52/326,941.43 = 129,489.68/x - Step 3: Cross multiply
236,920.52x = 326,941.43 × 129,489.68 - Step 4: Simplify right side
236,920.52x = 42,335,541,149.44 - Step 5: Solve for x
x = 42,335,541,149.44/236,920.52 - Step 6: Final answer
x = 178,690.90
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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.