Finding the Fourth Proportional to 177.87, 245.45 and 107.99
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Solution
The fourth proportional to 177.87, 245.45 and 107.99 is: 149.01
Step by Step Solution
- Step 1: Write the proportion equation
177.87 : 245.45 = 107.99 : x - Step 2: Convert to fraction form
177.87/245.45 = 107.99/x - Step 3: Cross multiply
177.87x = 245.45 × 107.99 - Step 4: Simplify right side
177.87x = 26,504.38 - Step 5: Solve for x
x = 26,504.38/177.87 - Step 6: Final answer
x = 149.01
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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.