Finding the Fourth Proportional to 203,905.45, 305,858.18 and 133,046.65
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Solution
The fourth proportional to 203,905.45, 305,858.18 and 133,046.65 is: 199,569.98
Step by Step Solution
- Step 1: Write the proportion equation
203,905.45 : 305,858.18 = 133,046.65 : x - Step 2: Convert to fraction form
203,905.45/305,858.18 = 133,046.65/x - Step 3: Cross multiply
203,905.45x = 305,858.18 × 133,046.65 - Step 4: Simplify right side
203,905.45x = 40,693,406,224.10 - Step 5: Solve for x
x = 40,693,406,224.10/203,905.45 - Step 6: Final answer
x = 199,569.98
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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.