Finding the Fourth Proportional to 280.62, 387.07 and 177.26
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Solution
The fourth proportional to 280.62, 387.07 and 177.26 is: 244.50
Step by Step Solution
- Step 1: Write the proportion equation
280.62 : 387.07 = 177.26 : x - Step 2: Convert to fraction form
280.62/387.07 = 177.26/x - Step 3: Cross multiply
280.62x = 387.07 × 177.26 - Step 4: Simplify right side
280.62x = 68,612.03 - Step 5: Solve for x
x = 68,612.03/280.62 - Step 6: Final answer
x = 244.50
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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.