Finding the Fourth Proportional to 288,656.97, 398,339.75 and 161,344.41
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Solution
The fourth proportional to 288,656.97, 398,339.75 and 161,344.41 is: 222,651.45
Step by Step Solution
- Step 1: Write the proportion equation
288,656.97 : 398,339.75 = 161,344.41 : x - Step 2: Convert to fraction form
288,656.97/398,339.75 = 161,344.41/x - Step 3: Cross multiply
288,656.97x = 398,339.75 × 161,344.41 - Step 4: Simplify right side
288,656.97x = 64,269,893,079.42 - Step 5: Solve for x
x = 64,269,893,079.42/288,656.97 - Step 6: Final answer
x = 222,651.45
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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.