Finding the Fourth Proportional to 281,538.99, 422,370.78 and 155,114.14
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Solution
The fourth proportional to 281,538.99, 422,370.78 and 155,114.14 is: 232,705.53
Step by Step Solution
- Step 1: Write the proportion equation
281,538.99 : 422,370.78 = 155,114.14 : x - Step 2: Convert to fraction form
281,538.99/422,370.78 = 155,114.14/x - Step 3: Cross multiply
281,538.99x = 422,370.78 × 155,114.14 - Step 4: Simplify right side
281,538.99x = 65,515,678,663.22 - Step 5: Solve for x
x = 65,515,678,663.22/281,538.99 - Step 6: Final answer
x = 232,705.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.