Finding the Fourth Proportional to 326,125.20, 489,135.36 and 89,412.96
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Solution
The fourth proportional to 326,125.20, 489,135.36 and 89,412.96 is: 134,105.06
Step by Step Solution
- Step 1: Write the proportion equation
326,125.20 : 489,135.36 = 89,412.96 : x - Step 2: Convert to fraction form
326,125.20/489,135.36 = 89,412.96/x - Step 3: Cross multiply
326,125.20x = 489,135.36 × 89,412.96 - Step 4: Simplify right side
326,125.20x = 43,735,040,378.27 - Step 5: Solve for x
x = 43,735,040,378.27/326,125.20 - Step 6: Final answer
x = 134,105.06
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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.