Finding the Fourth Proportional to 276.68, 381.84 and 160.26
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Solution
The fourth proportional to 276.68, 381.84 and 160.26 is: 221.17
Step by Step Solution
- Step 1: Write the proportion equation
276.68 : 381.84 = 160.26 : x - Step 2: Convert to fraction form
276.68/381.84 = 160.26/x - Step 3: Cross multiply
276.68x = 381.84 × 160.26 - Step 4: Simplify right side
276.68x = 61,193.68 - Step 5: Solve for x
x = 61,193.68/276.68 - Step 6: Final answer
x = 221.17
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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.