Finding the Fourth Proportional to 187,412.80, 281,119.20 and 124,427.20
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Solution
The fourth proportional to 187,412.80, 281,119.20 and 124,427.20 is: 186,640.80
Step by Step Solution
- Step 1: Write the proportion equation
187,412.80 : 281,119.20 = 124,427.20 : x - Step 2: Convert to fraction form
187,412.80/281,119.20 = 124,427.20/x - Step 3: Cross multiply
187,412.80x = 281,119.20 × 124,427.20 - Step 4: Simplify right side
187,412.80x = 34,978,874,922.24 - Step 5: Solve for x
x = 34,978,874,922.24/187,412.80 - Step 6: Final answer
x = 186,640.80
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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.