Finding the Fourth Proportional to 211,268.81, 316,689.97 and 132,438.40
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Solution
The fourth proportional to 211,268.81, 316,689.97 and 132,438.40 is: 198,523.92
Step by Step Solution
- Step 1: Write the proportion equation
211,268.81 : 316,689.97 = 132,438.40 : x - Step 2: Convert to fraction form
211,268.81/316,689.97 = 132,438.40/x - Step 3: Cross multiply
211,268.81x = 316,689.97 × 132,438.40 - Step 4: Simplify right side
211,268.81x = 41,941,912,922.85 - Step 5: Solve for x
x = 41,941,912,922.85/211,268.81 - Step 6: Final answer
x = 198,523.92
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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.