Finding the Fourth Proportional to 177.11, 266.79 and 163.75
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Solution
The fourth proportional to 177.11, 266.79 and 163.75 is: 246.66
Step by Step Solution
- Step 1: Write the proportion equation
177.11 : 266.79 = 163.75 : x - Step 2: Convert to fraction form
177.11/266.79 = 163.75/x - Step 3: Cross multiply
177.11x = 266.79 × 163.75 - Step 4: Simplify right side
177.11x = 43,686.45 - Step 5: Solve for x
x = 43,686.45/177.11 - Step 6: Final answer
x = 246.66
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.