Finding the Fourth Proportional to 177.24, 265.84 and 79.70
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Solution
The fourth proportional to 177.24, 265.84 and 79.70 is: 119.54
Step by Step Solution
- Step 1: Write the proportion equation
177.24 : 265.84 = 79.70 : x - Step 2: Convert to fraction form
177.24/265.84 = 79.70/x - Step 3: Cross multiply
177.24x = 265.84 × 79.70 - Step 4: Simplify right side
177.24x = 21,187.45 - Step 5: Solve for x
x = 21,187.45/177.24 - Step 6: Final answer
x = 119.54
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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.