Finding the Fourth Proportional to 338.30, 508.08 and 201.62
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Solution
The fourth proportional to 338.30, 508.08 and 201.62 is: 302.81
Step by Step Solution
- Step 1: Write the proportion equation
338.30 : 508.08 = 201.62 : x - Step 2: Convert to fraction form
338.30/508.08 = 201.62/x - Step 3: Cross multiply
338.30x = 508.08 × 201.62 - Step 4: Simplify right side
338.30x = 102,439.09 - Step 5: Solve for x
x = 102,439.09/338.30 - Step 6: Final answer
x = 302.81
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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.