Finding the Fourth Proportional to 199,936.28, 275,920.44 and 115,053.68
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Solution
The fourth proportional to 199,936.28, 275,920.44 and 115,053.68 is: 158,778.90
Step by Step Solution
- Step 1: Write the proportion equation
199,936.28 : 275,920.44 = 115,053.68 : x - Step 2: Convert to fraction form
199,936.28/275,920.44 = 115,053.68/x - Step 3: Cross multiply
199,936.28x = 275,920.44 × 115,053.68 - Step 4: Simplify right side
199,936.28x = 31,745,662,009.22 - Step 5: Solve for x
x = 31,745,662,009.22/199,936.28 - Step 6: Final answer
x = 158,778.90
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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.