Finding the Fourth Proportional to 326,158.70, 489,286.66 and 115,779.02
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Solution
The fourth proportional to 326,158.70, 489,286.66 and 115,779.02 is: 173,685.79
Step by Step Solution
- Step 1: Write the proportion equation
326,158.70 : 489,286.66 = 115,779.02 : x - Step 2: Convert to fraction form
326,158.70/489,286.66 = 115,779.02/x - Step 3: Cross multiply
326,158.70x = 489,286.66 × 115,779.02 - Step 4: Simplify right side
326,158.70x = 56,649,129,993.87 - Step 5: Solve for x
x = 56,649,129,993.87/326,158.70 - Step 6: Final answer
x = 173,685.79
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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.