Finding the Fourth Proportional to 177.92, 266.82 and 69.68
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Solution
The fourth proportional to 177.92, 266.82 and 69.68 is: 104.49
Step by Step Solution
- Step 1: Write the proportion equation
177.92 : 266.82 = 69.68 : x - Step 2: Convert to fraction form
177.92/266.82 = 69.68/x - Step 3: Cross multiply
177.92x = 266.82 × 69.68 - Step 4: Simplify right side
177.92x = 18,590.68 - Step 5: Solve for x
x = 18,590.68/177.92 - Step 6: Final answer
x = 104.49
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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.