Finding the Fourth Proportional to 189,550.26, 261,459.90 and 121,497.03
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Solution
The fourth proportional to 189,550.26, 261,459.90 and 121,497.03 is: 167,589.33
Step by Step Solution
- Step 1: Write the proportion equation
189,550.26 : 261,459.90 = 121,497.03 : x - Step 2: Convert to fraction form
189,550.26/261,459.90 = 121,497.03/x - Step 3: Cross multiply
189,550.26x = 261,459.90 × 121,497.03 - Step 4: Simplify right side
189,550.26x = 31,766,601,314.10 - Step 5: Solve for x
x = 31,766,601,314.10/189,550.26 - Step 6: Final answer
x = 167,589.33
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1.5x scale
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.