Finding the Fourth Proportional to 664,133.13, 996,199.69 and 220,901.13
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Solution
The fourth proportional to 664,133.13, 996,199.69 and 220,901.13 is: 331,351.69
Step by Step Solution
- Step 1: Write the proportion equation
664,133.13 : 996,199.69 = 220,901.13 : x - Step 2: Convert to fraction form
664,133.13/996,199.69 = 220,901.13/x - Step 3: Cross multiply
664,133.13x = 996,199.69 × 220,901.13 - Step 4: Simplify right side
664,133.13x = 220,061,631,693.40 - Step 5: Solve for x
x = 220,061,631,693.40/664,133.13 - Step 6: Final answer
x = 331,351.69
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Double scale
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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.