Finding the Fourth Proportional to 203,988.35, 281,413.35 and 135,939.03
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Solution
The fourth proportional to 203,988.35, 281,413.35 and 135,939.03 is: 187,535.51
Step by Step Solution
- Step 1: Write the proportion equation
203,988.35 : 281,413.35 = 135,939.03 : x - Step 2: Convert to fraction form
203,988.35/281,413.35 = 135,939.03/x - Step 3: Cross multiply
203,988.35x = 281,413.35 × 135,939.03 - Step 4: Simplify right side
203,988.35x = 38,255,057,828.05 - Step 5: Solve for x
x = 38,255,057,828.05/203,988.35 - Step 6: Final answer
x = 187,535.51
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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.