Finding the Fourth Proportional to 206,836.96, 310,256.26 and 136,700.68
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Solution
The fourth proportional to 206,836.96, 310,256.26 and 136,700.68 is: 205,051.56
Step by Step Solution
- Step 1: Write the proportion equation
206,836.96 : 310,256.26 = 136,700.68 : x - Step 2: Convert to fraction form
206,836.96/310,256.26 = 136,700.68/x - Step 3: Cross multiply
206,836.96x = 310,256.26 × 136,700.68 - Step 4: Simplify right side
206,836.96x = 42,412,241,716.26 - Step 5: Solve for x
x = 42,412,241,716.26/206,836.96 - Step 6: Final answer
x = 205,051.56
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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.