Finding the Fourth Proportional to 177.21, 265.70 and 68.96
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Solution
The fourth proportional to 177.21, 265.70 and 68.96 is: 103.39
Step by Step Solution
- Step 1: Write the proportion equation
177.21 : 265.70 = 68.96 : x - Step 2: Convert to fraction form
177.21/265.70 = 68.96/x - Step 3: Cross multiply
177.21x = 265.70 × 68.96 - Step 4: Simplify right side
177.21x = 18,321.00 - Step 5: Solve for x
x = 18,321.00/177.21 - Step 6: Final answer
x = 103.39
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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.