Finding the Fourth Proportional to 323,747.40, 485,102.70 and 212,809.80
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Solution
The fourth proportional to 323,747.40, 485,102.70 and 212,809.80 is: 318,873.94
Step by Step Solution
- Step 1: Write the proportion equation
323,747.40 : 485,102.70 = 212,809.80 : x - Step 2: Convert to fraction form
323,747.40/485,102.70 = 212,809.80/x - Step 3: Cross multiply
323,747.40x = 485,102.70 × 212,809.80 - Step 4: Simplify right side
323,747.40x = 103,234,608,566.46 - Step 5: Solve for x
x = 103,234,608,566.46/323,747.40 - Step 6: Final answer
x = 318,873.94
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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.