Finding the Fourth Proportional to 415,310.28, 622,435.68 and 202,128.81
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Solution
The fourth proportional to 415,310.28, 622,435.68 and 202,128.81 is: 302,935.39
Step by Step Solution
- Step 1: Write the proportion equation
415,310.28 : 622,435.68 = 202,128.81 : x - Step 2: Convert to fraction form
415,310.28/622,435.68 = 202,128.81/x - Step 3: Cross multiply
415,310.28x = 622,435.68 × 202,128.81 - Step 4: Simplify right side
415,310.28x = 125,812,183,299.94 - Step 5: Solve for x
x = 125,812,183,299.94/415,310.28 - Step 6: Final answer
x = 302,935.39
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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.