Finding the Fourth Proportional to 356,286.33, 491,665.68 and 203,321.70
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Solution
The fourth proportional to 356,286.33, 491,665.68 and 203,321.70 is: 280,578.55
Step by Step Solution
- Step 1: Write the proportion equation
356,286.33 : 491,665.68 = 203,321.70 : x - Step 2: Convert to fraction form
356,286.33/491,665.68 = 203,321.70/x - Step 3: Cross multiply
356,286.33x = 491,665.68 × 203,321.70 - Step 4: Simplify right side
356,286.33x = 99,966,301,889.26 - Step 5: Solve for x
x = 99,966,301,889.26/356,286.33 - Step 6: Final answer
x = 280,578.55
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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.