Finding the Fourth Proportional to 368.64, 553.05 and 163.11
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Solution
The fourth proportional to 368.64, 553.05 and 163.11 is: 244.70
Step by Step Solution
- Step 1: Write the proportion equation
368.64 : 553.05 = 163.11 : x - Step 2: Convert to fraction form
368.64/553.05 = 163.11/x - Step 3: Cross multiply
368.64x = 553.05 × 163.11 - Step 4: Simplify right side
368.64x = 90,207.99 - Step 5: Solve for x
x = 90,207.99/368.64 - Step 6: Final answer
x = 244.70
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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.