Finding the Fourth Proportional to 476,236.71, 657,158.81 and 285,245.19
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Solution
The fourth proportional to 476,236.71, 657,158.81 and 285,245.19 is: 393,609.70
Step by Step Solution
- Step 1: Write the proportion equation
476,236.71 : 657,158.81 = 285,245.19 : x - Step 2: Convert to fraction form
476,236.71/657,158.81 = 285,245.19/x - Step 3: Cross multiply
476,236.71x = 657,158.81 × 285,245.19 - Step 4: Simplify right side
476,236.71x = 187,451,388,192.40 - Step 5: Solve for x
x = 187,451,388,192.40/476,236.71 - Step 6: Final answer
x = 393,609.70
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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.