Finding the Fourth Proportional to 261,993.36, 392,661.36 and 112,057.68
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Solution
The fourth proportional to 261,993.36, 392,661.36 and 112,057.68 is: 167,945.94
Step by Step Solution
- Step 1: Write the proportion equation
261,993.36 : 392,661.36 = 112,057.68 : x - Step 2: Convert to fraction form
261,993.36/392,661.36 = 112,057.68/x - Step 3: Cross multiply
261,993.36x = 392,661.36 × 112,057.68 - Step 4: Simplify right side
261,993.36x = 44,000,721,027.24 - Step 5: Solve for x
x = 44,000,721,027.24/261,993.36 - Step 6: Final answer
x = 167,945.94
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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.