Finding the Fourth Proportional to 356,257.87, 491,513.90 and 203,186.05
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Solution
The fourth proportional to 356,257.87, 491,513.90 and 203,186.05 is: 280,327.19
Step by Step Solution
- Step 1: Write the proportion equation
356,257.87 : 491,513.90 = 203,186.05 : x - Step 2: Convert to fraction form
356,257.87/491,513.90 = 203,186.05/x - Step 3: Cross multiply
356,257.87x = 491,513.90 × 203,186.05 - Step 4: Simplify right side
356,257.87x = 99,868,765,616.38 - Step 5: Solve for x
x = 99,868,765,616.38/356,257.87 - Step 6: Final answer
x = 280,327.19
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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.