Finding the Fourth Proportional to 276.68, 414.95 and 84.26
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Solution
The fourth proportional to 276.68, 414.95 and 84.26 is: 126.37
Step by Step Solution
- Step 1: Write the proportion equation
276.68 : 414.95 = 84.26 : x - Step 2: Convert to fraction form
276.68/414.95 = 84.26/x - Step 3: Cross multiply
276.68x = 414.95 × 84.26 - Step 4: Simplify right side
276.68x = 34,963.69 - Step 5: Solve for x
x = 34,963.69/276.68 - Step 6: Final answer
x = 126.37
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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.