Finding the Fourth Proportional to 211,268.92, 316,690.12 and 132,438.52
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Solution
The fourth proportional to 211,268.92, 316,690.12 and 132,438.52 is: 198,524.09
Step by Step Solution
- Step 1: Write the proportion equation
211,268.92 : 316,690.12 = 132,438.52 : x - Step 2: Convert to fraction form
211,268.92/316,690.12 = 132,438.52/x - Step 3: Cross multiply
211,268.92x = 316,690.12 × 132,438.52 - Step 4: Simplify right side
211,268.92x = 41,941,970,791.42 - Step 5: Solve for x
x = 41,941,970,791.42/211,268.92 - Step 6: Final answer
x = 198,524.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.