Finding the Fourth Proportional to 288,851.88, 398,608.13 and 159,786.99
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Solution
The fourth proportional to 288,851.88, 398,608.13 and 159,786.99 is: 220,501.92
Step by Step Solution
- Step 1: Write the proportion equation
288,851.88 : 398,608.13 = 159,786.99 : x - Step 2: Convert to fraction form
288,851.88/398,608.13 = 159,786.99/x - Step 3: Cross multiply
288,851.88x = 398,608.13 × 159,786.99 - Step 4: Simplify right side
288,851.88x = 63,692,392,685.18 - Step 5: Solve for x
x = 63,692,392,685.18/288,851.88 - Step 6: Final answer
x = 220,501.92
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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.