Finding the Fourth Proportional to 206,374.09, 284,675.58 and 129,771.95
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Solution
The fourth proportional to 206,374.09, 284,675.58 and 129,771.95 is: 179,009.42
Step by Step Solution
- Step 1: Write the proportion equation
206,374.09 : 284,675.58 = 129,771.95 : x - Step 2: Convert to fraction form
206,374.09/284,675.58 = 129,771.95/x - Step 3: Cross multiply
206,374.09x = 284,675.58 × 129,771.95 - Step 4: Simplify right side
206,374.09x = 36,942,905,133.98 - Step 5: Solve for x
x = 36,942,905,133.98/206,374.09 - Step 6: Final answer
x = 179,009.42
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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.