Finding the Fourth Proportional to 206,194.56, 308,998.08 and 121,971.84
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Solution
The fourth proportional to 206,194.56, 308,998.08 and 121,971.84 is: 182,783.99
Step by Step Solution
- Step 1: Write the proportion equation
206,194.56 : 308,998.08 = 121,971.84 : x - Step 2: Convert to fraction form
206,194.56/308,998.08 = 121,971.84/x - Step 3: Cross multiply
206,194.56x = 308,998.08 × 121,971.84 - Step 4: Simplify right side
206,194.56x = 37,689,064,374.07 - Step 5: Solve for x
x = 37,689,064,374.07/206,194.56 - Step 6: Final answer
x = 182,783.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.