Finding the Fourth Proportional to 338.79, 507.42 and 201.63
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Solution
The fourth proportional to 338.79, 507.42 and 201.63 is: 301.99
Step by Step Solution
- Step 1: Write the proportion equation
338.79 : 507.42 = 201.63 : x - Step 2: Convert to fraction form
338.79/507.42 = 201.63/x - Step 3: Cross multiply
338.79x = 507.42 × 201.63 - Step 4: Simplify right side
338.79x = 102,311.09 - Step 5: Solve for x
x = 102,311.09/338.79 - Step 6: Final answer
x = 301.99
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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.