Finding the Fourth Proportional to 276.22, 381.08 and 193.28
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Solution
The fourth proportional to 276.22, 381.08 and 193.28 is: 266.65
Step by Step Solution
- Step 1: Write the proportion equation
276.22 : 381.08 = 193.28 : x - Step 2: Convert to fraction form
276.22/381.08 = 193.28/x - Step 3: Cross multiply
276.22x = 381.08 × 193.28 - Step 4: Simplify right side
276.22x = 73,655.14 - Step 5: Solve for x
x = 73,655.14/276.22 - Step 6: Final answer
x = 266.65
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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.