Finding the Fourth Proportional to 177.70, 245.27 and 115.68
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Solution
The fourth proportional to 177.70, 245.27 and 115.68 is: 159.67
Step by Step Solution
- Step 1: Write the proportion equation
177.70 : 245.27 = 115.68 : x - Step 2: Convert to fraction form
177.70/245.27 = 115.68/x - Step 3: Cross multiply
177.70x = 245.27 × 115.68 - Step 4: Simplify right side
177.70x = 28,372.26 - Step 5: Solve for x
x = 28,372.26/177.70 - Step 6: Final answer
x = 159.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.