Finding the Fourth Proportional to 259,436.40, 388,451.12 and 134,514.96
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Solution
The fourth proportional to 259,436.40, 388,451.12 and 134,514.96 is: 201,407.69
Step by Step Solution
- Step 1: Write the proportion equation
259,436.40 : 388,451.12 = 134,514.96 : x - Step 2: Convert to fraction form
259,436.40/388,451.12 = 134,514.96/x - Step 3: Cross multiply
259,436.40x = 388,451.12 × 134,514.96 - Step 4: Simplify right side
259,436.40x = 52,252,486,196.18 - Step 5: Solve for x
x = 52,252,486,196.18/259,436.40 - Step 6: Final answer
x = 201,407.69
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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.