Finding the Fourth Proportional to 288,463.68, 398,163.84 and 167,659.20
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Solution
The fourth proportional to 288,463.68, 398,163.84 and 167,659.20 is: 231,418.50
Step by Step Solution
- Step 1: Write the proportion equation
288,463.68 : 398,163.84 = 167,659.20 : x - Step 2: Convert to fraction form
288,463.68/398,163.84 = 167,659.20/x - Step 3: Cross multiply
288,463.68x = 398,163.84 × 167,659.20 - Step 4: Simplify right side
288,463.68x = 66,755,830,883.33 - Step 5: Solve for x
x = 66,755,830,883.33/288,463.68 - Step 6: Final answer
x = 231,418.50
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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.