Finding the Fourth Proportional to 205,517.02, 283,604.79 and 129,076.06
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Solution
The fourth proportional to 205,517.02, 283,604.79 and 129,076.06 is: 178,119.50
Step by Step Solution
- Step 1: Write the proportion equation
205,517.02 : 283,604.79 = 129,076.06 : x - Step 2: Convert to fraction form
205,517.02/283,604.79 = 129,076.06/x - Step 3: Cross multiply
205,517.02x = 283,604.79 × 129,076.06 - Step 4: Simplify right side
205,517.02x = 36,606,588,890.33 - Step 5: Solve for x
x = 36,606,588,890.33/205,517.02 - Step 6: Final answer
x = 178,119.50
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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.