Finding the Fourth Proportional to 326,321.83, 489,424.35 and 207,640.63
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Solution
The fourth proportional to 326,321.83, 489,424.35 and 207,640.63 is: 311,423.79
Step by Step Solution
- Step 1: Write the proportion equation
326,321.83 : 489,424.35 = 207,640.63 : x - Step 2: Convert to fraction form
326,321.83/489,424.35 = 207,640.63/x - Step 3: Cross multiply
326,321.83x = 489,424.35 × 207,640.63 - Step 4: Simplify right side
326,321.83x = 101,624,380,371.34 - Step 5: Solve for x
x = 101,624,380,371.34/326,321.83 - Step 6: Final answer
x = 311,423.79
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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.