Finding the Fourth Proportional to 277.24, 415.39 and 130.75
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Solution
The fourth proportional to 277.24, 415.39 and 130.75 is: 195.90
Step by Step Solution
- Step 1: Write the proportion equation
277.24 : 415.39 = 130.75 : x - Step 2: Convert to fraction form
277.24/415.39 = 130.75/x - Step 3: Cross multiply
277.24x = 415.39 × 130.75 - Step 4: Simplify right side
277.24x = 54,312.24 - Step 5: Solve for x
x = 54,312.24/277.24 - Step 6: Final answer
x = 195.90
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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.