Finding the Fourth Proportional to 664,164.10, 996,246.15 and 190,821.70
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Solution
The fourth proportional to 664,164.10, 996,246.15 and 190,821.70 is: 286,232.55
Step by Step Solution
- Step 1: Write the proportion equation
664,164.10 : 996,246.15 = 190,821.70 : x - Step 2: Convert to fraction form
664,164.10/996,246.15 = 190,821.70/x - Step 3: Cross multiply
664,164.10x = 996,246.15 × 190,821.70 - Step 4: Simplify right side
664,164.10x = 190,105,383,961.46 - Step 5: Solve for x
x = 190,105,383,961.46/664,164.10 - Step 6: Final answer
x = 286,232.55
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Similar ratio
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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.