Finding the Fourth Proportional to 326,622.42, 489,078.27 and 213,948.18
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Solution
The fourth proportional to 326,622.42, 489,078.27 and 213,948.18 is: 320,361.98
Step by Step Solution
- Step 1: Write the proportion equation
326,622.42 : 489,078.27 = 213,948.18 : x - Step 2: Convert to fraction form
326,622.42/489,078.27 = 213,948.18/x - Step 3: Cross multiply
326,622.42x = 489,078.27 × 213,948.18 - Step 4: Simplify right side
326,622.42x = 104,637,405,744.05 - Step 5: Solve for x
x = 104,637,405,744.05/326,622.42 - Step 6: Final answer
x = 320,361.98
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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.