Finding the Fourth Proportional to 206,645.84, 285,097.92 and 135,067.19
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Solution
The fourth proportional to 206,645.84, 285,097.92 and 135,067.19 is: 186,344.79
Step by Step Solution
- Step 1: Write the proportion equation
206,645.84 : 285,097.92 = 135,067.19 : x - Step 2: Convert to fraction form
206,645.84/285,097.92 = 135,067.19/x - Step 3: Cross multiply
206,645.84x = 285,097.92 × 135,067.19 - Step 4: Simplify right side
206,645.84x = 38,507,374,929.24 - Step 5: Solve for x
x = 38,507,374,929.24/206,645.84 - Step 6: Final answer
x = 186,344.79
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1.5x scale
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.