Finding the Fourth Proportional to 206,775.06, 285,457.98 and 139,147.62
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Solution
The fourth proportional to 206,775.06, 285,457.98 and 139,147.62 is: 192,096.66
Step by Step Solution
- Step 1: Write the proportion equation
206,775.06 : 285,457.98 = 139,147.62 : x - Step 2: Convert to fraction form
206,775.06/285,457.98 = 139,147.62/x - Step 3: Cross multiply
206,775.06x = 285,457.98 × 139,147.62 - Step 4: Simplify right side
206,775.06x = 39,720,798,527.01 - Step 5: Solve for x
x = 39,720,798,527.01/206,775.06 - Step 6: Final answer
x = 192,096.66
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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.