Finding the Fourth Proportional to 321,763.84, 482,911.20 and 161,884.96
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Solution
The fourth proportional to 321,763.84, 482,911.20 and 161,884.96 is: 242,960.99
Step by Step Solution
- Step 1: Write the proportion equation
321,763.84 : 482,911.20 = 161,884.96 : x - Step 2: Convert to fraction form
321,763.84/482,911.20 = 161,884.96/x - Step 3: Cross multiply
321,763.84x = 482,911.20 × 161,884.96 - Step 4: Simplify right side
321,763.84x = 78,176,060,295.55 - Step 5: Solve for x
x = 78,176,060,295.55/321,763.84 - Step 6: Final answer
x = 242,960.99
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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.