Finding the Fourth Proportional to 317,151.60, 437,689.44 and 209,532.84
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Solution
The fourth proportional to 317,151.60, 437,689.44 and 209,532.84 is: 289,168.69
Step by Step Solution
- Step 1: Write the proportion equation
317,151.60 : 437,689.44 = 209,532.84 : x - Step 2: Convert to fraction form
317,151.60/437,689.44 = 209,532.84/x - Step 3: Cross multiply
317,151.60x = 437,689.44 × 209,532.84 - Step 4: Simplify right side
317,151.60x = 91,710,311,401.21 - Step 5: Solve for x
x = 91,710,311,401.21/317,151.60 - Step 6: Final answer
x = 289,168.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.