Finding the Fourth Proportional to 177.79, 245.19 and 122.44
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Solution
The fourth proportional to 177.79, 245.19 and 122.44 is: 168.86
Step by Step Solution
- Step 1: Write the proportion equation
177.79 : 245.19 = 122.44 : x - Step 2: Convert to fraction form
177.79/245.19 = 122.44/x - Step 3: Cross multiply
177.79x = 245.19 × 122.44 - Step 4: Simplify right side
177.79x = 30,021.06 - Step 5: Solve for x
x = 30,021.06/177.79 - Step 6: Final answer
x = 168.86
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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.