Finding the Fourth Proportional to 261,921.51, 392,954.79 and 104,260.68
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Solution
The fourth proportional to 261,921.51, 392,954.79 and 104,260.68 is: 156,419.89
Step by Step Solution
- Step 1: Write the proportion equation
261,921.51 : 392,954.79 = 104,260.68 : x - Step 2: Convert to fraction form
261,921.51/392,954.79 = 104,260.68/x - Step 3: Cross multiply
261,921.51x = 392,954.79 × 104,260.68 - Step 4: Simplify right side
261,921.51x = 40,969,733,614.66 - Step 5: Solve for x
x = 40,969,733,614.66/261,921.51 - Step 6: Final answer
x = 156,419.89
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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.