Finding the Fourth Proportional to 202,720.70, 279,708.17 and 121,033.09
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Solution
The fourth proportional to 202,720.70, 279,708.17 and 121,033.09 is: 166,997.96
Step by Step Solution
- Step 1: Write the proportion equation
202,720.70 : 279,708.17 = 121,033.09 : x - Step 2: Convert to fraction form
202,720.70/279,708.17 = 121,033.09/x - Step 3: Cross multiply
202,720.70x = 279,708.17 × 121,033.09 - Step 4: Simplify right side
202,720.70x = 33,853,942,714.80 - Step 5: Solve for x
x = 33,853,942,714.80/202,720.70 - Step 6: Final answer
x = 166,997.96
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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.