Finding the Fourth Proportional to 177.08, 265.44 and 80.78
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Solution
The fourth proportional to 177.08, 265.44 and 80.78 is: 121.09
Step by Step Solution
- Step 1: Write the proportion equation
177.08 : 265.44 = 80.78 : x - Step 2: Convert to fraction form
177.08/265.44 = 80.78/x - Step 3: Cross multiply
177.08x = 265.44 × 80.78 - Step 4: Simplify right side
177.08x = 21,442.24 - Step 5: Solve for x
x = 21,442.24/177.08 - Step 6: Final answer
x = 121.09
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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.