Finding the Fourth Proportional to 281,370.97, 388,328.92 and 160,484.55
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Solution
The fourth proportional to 281,370.97, 388,328.92 and 160,484.55 is: 221,489.77
Step by Step Solution
- Step 1: Write the proportion equation
281,370.97 : 388,328.92 = 160,484.55 : x - Step 2: Convert to fraction form
281,370.97/388,328.92 = 160,484.55/x - Step 3: Cross multiply
281,370.97x = 388,328.92 × 160,484.55 - Step 4: Simplify right side
281,370.97x = 62,320,790,036.54 - Step 5: Solve for x
x = 62,320,790,036.54/281,370.97 - Step 6: Final answer
x = 221,489.77
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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.