Finding the Fourth Proportional to 420,183.80, 629,750.10 and 209,880.44
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Solution
The fourth proportional to 420,183.80, 629,750.10 and 209,880.44 is: 314,558.12
Step by Step Solution
- Step 1: Write the proportion equation
420,183.80 : 629,750.10 = 209,880.44 : x - Step 2: Convert to fraction form
420,183.80/629,750.10 = 209,880.44/x - Step 3: Cross multiply
420,183.80x = 629,750.10 × 209,880.44 - Step 4: Simplify right side
420,183.80x = 132,172,228,078.04 - Step 5: Solve for x
x = 132,172,228,078.04/420,183.80 - Step 6: Final answer
x = 314,558.12
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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.