Finding the Fourth Proportional to 281,953.07, 389,059.38 and 161,102.18
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Solution
The fourth proportional to 281,953.07, 389,059.38 and 161,102.18 is: 222,300.53
Step by Step Solution
- Step 1: Write the proportion equation
281,953.07 : 389,059.38 = 161,102.18 : x - Step 2: Convert to fraction form
281,953.07/389,059.38 = 161,102.18/x - Step 3: Cross multiply
281,953.07x = 389,059.38 × 161,102.18 - Step 4: Simplify right side
281,953.07x = 62,678,315,240.10 - Step 5: Solve for x
x = 62,678,315,240.10/281,953.07 - Step 6: Final answer
x = 222,300.53
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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.