Finding the Fourth Proportional to 288,293.68, 397,841.56 and 160,971.44
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Solution
The fourth proportional to 288,293.68, 397,841.56 and 160,971.44 is: 222,138.51
Step by Step Solution
- Step 1: Write the proportion equation
288,293.68 : 397,841.56 = 160,971.44 : x - Step 2: Convert to fraction form
288,293.68/397,841.56 = 160,971.44/x - Step 3: Cross multiply
288,293.68x = 397,841.56 × 160,971.44 - Step 4: Simplify right side
288,293.68x = 64,041,128,805.05 - Step 5: Solve for x
x = 64,041,128,805.05/288,293.68 - Step 6: Final answer
x = 222,138.51
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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.