Finding the Fourth Proportional to 261,568.06, 392,079.93 and 121,211.26
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Solution
The fourth proportional to 261,568.06, 392,079.93 and 121,211.26 is: 181,690.77
Step by Step Solution
- Step 1: Write the proportion equation
261,568.06 : 392,079.93 = 121,211.26 : x - Step 2: Convert to fraction form
261,568.06/392,079.93 = 121,211.26/x - Step 3: Cross multiply
261,568.06x = 392,079.93 × 121,211.26 - Step 4: Simplify right side
261,568.06x = 47,524,502,336.01 - Step 5: Solve for x
x = 47,524,502,336.01/261,568.06 - Step 6: Final answer
x = 181,690.77
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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.