Finding the Fourth Proportional to 209,400.85, 313,730.70 and 202,463.20
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Solution
The fourth proportional to 209,400.85, 313,730.70 and 202,463.20 is: 303,336.50
Step by Step Solution
- Step 1: Write the proportion equation
209,400.85 : 313,730.70 = 202,463.20 : x - Step 2: Convert to fraction form
209,400.85/313,730.70 = 202,463.20/x - Step 3: Cross multiply
209,400.85x = 313,730.70 × 202,463.20 - Step 4: Simplify right side
209,400.85x = 63,518,921,460.24 - Step 5: Solve for x
x = 63,518,921,460.24/209,400.85 - Step 6: Final answer
x = 303,336.50
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1.5x scale
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.