Finding the Fourth Proportional to 326,263.20, 489,394.80 and 212,101.80
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Solution
The fourth proportional to 326,263.20, 489,394.80 and 212,101.80 is: 318,152.70
Step by Step Solution
- Step 1: Write the proportion equation
326,263.20 : 489,394.80 = 212,101.80 : x - Step 2: Convert to fraction form
326,263.20/489,394.80 = 212,101.80/x - Step 3: Cross multiply
326,263.20x = 489,394.80 × 212,101.80 - Step 4: Simplify right side
326,263.20x = 103,801,517,990.64 - Step 5: Solve for x
x = 103,801,517,990.64/326,263.20 - Step 6: Final answer
x = 318,152.70
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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.