Finding the Fourth Proportional to 288,859.10, 398,725.77 and 198,514.13
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Solution
The fourth proportional to 288,859.10, 398,725.77 and 198,514.13 is: 274,018.37
Step by Step Solution
- Step 1: Write the proportion equation
288,859.10 : 398,725.77 = 198,514.13 : x - Step 2: Convert to fraction form
288,859.10/398,725.77 = 198,514.13/x - Step 3: Cross multiply
288,859.10x = 398,725.77 × 198,514.13 - Step 4: Simplify right side
288,859.10x = 79,152,699,340.13 - Step 5: Solve for x
x = 79,152,699,340.13/288,859.10 - Step 6: Final answer
x = 274,018.37
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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.