Finding the Fourth Proportional to 203,639.13, 281,028.42 and 113,001.75
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Solution
The fourth proportional to 203,639.13, 281,028.42 and 113,001.75 is: 155,945.98
Step by Step Solution
- Step 1: Write the proportion equation
203,639.13 : 281,028.42 = 113,001.75 : x - Step 2: Convert to fraction form
203,639.13/281,028.42 = 113,001.75/x - Step 3: Cross multiply
203,639.13x = 281,028.42 × 113,001.75 - Step 4: Simplify right side
203,639.13x = 31,756,703,259.74 - Step 5: Solve for x
x = 31,756,703,259.74/203,639.13 - Step 6: Final answer
x = 155,945.98
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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.