Finding the Fourth Proportional to 317,251.13, 475,242.21 and 190,821.56
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Solution
The fourth proportional to 317,251.13, 475,242.21 and 190,821.56 is: 285,850.70
Step by Step Solution
- Step 1: Write the proportion equation
317,251.13 : 475,242.21 = 190,821.56 : x - Step 2: Convert to fraction form
317,251.13/475,242.21 = 190,821.56/x - Step 3: Cross multiply
317,251.13x = 475,242.21 × 190,821.56 - Step 4: Simplify right side
317,251.13x = 90,686,457,513.84 - Step 5: Solve for x
x = 90,686,457,513.84/317,251.13 - Step 6: Final answer
x = 285,850.70
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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.