Finding the Fourth Proportional to 378.08, 567.10 and 161.68
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Solution
The fourth proportional to 378.08, 567.10 and 161.68 is: 242.51
Step by Step Solution
- Step 1: Write the proportion equation
378.08 : 567.10 = 161.68 : x - Step 2: Convert to fraction form
378.08/567.10 = 161.68/x - Step 3: Cross multiply
378.08x = 567.10 × 161.68 - Step 4: Simplify right side
378.08x = 91,688.73 - Step 5: Solve for x
x = 91,688.73/378.08 - Step 6: Final answer
x = 242.51
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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.