Finding the Fourth Proportional to 276.99, 381.18 and 214.57
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Solution
The fourth proportional to 276.99, 381.18 and 214.57 is: 295.28
Step by Step Solution
- Step 1: Write the proportion equation
276.99 : 381.18 = 214.57 : x - Step 2: Convert to fraction form
276.99/381.18 = 214.57/x - Step 3: Cross multiply
276.99x = 381.18 × 214.57 - Step 4: Simplify right side
276.99x = 81,789.79 - Step 5: Solve for x
x = 81,789.79/276.99 - Step 6: Final answer
x = 295.28
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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.