Finding the Fourth Proportional to 338.67, 508.08 and 107.63
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Solution
The fourth proportional to 338.67, 508.08 and 107.63 is: 161.47
Step by Step Solution
- Step 1: Write the proportion equation
338.67 : 508.08 = 107.63 : x - Step 2: Convert to fraction form
338.67/508.08 = 107.63/x - Step 3: Cross multiply
338.67x = 508.08 × 107.63 - Step 4: Simplify right side
338.67x = 54,684.65 - Step 5: Solve for x
x = 54,684.65/338.67 - Step 6: Final answer
x = 161.47
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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.