Finding the Fourth Proportional to 288,221.31, 397,745.36 and 160,896.91
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Solution
The fourth proportional to 288,221.31, 397,745.36 and 160,896.91 is: 222,037.70
Step by Step Solution
- Step 1: Write the proportion equation
288,221.31 : 397,745.36 = 160,896.91 : x - Step 2: Convert to fraction form
288,221.31/397,745.36 = 160,896.91/x - Step 3: Cross multiply
288,221.31x = 397,745.36 × 160,896.91 - Step 4: Simplify right side
288,221.31x = 63,995,998,274.99 - Step 5: Solve for x
x = 63,995,998,274.99/288,221.31 - Step 6: Final answer
x = 222,037.70
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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.