Finding the Fourth Proportional to 276.08, 380.97 and 177.66
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Solution
The fourth proportional to 276.08, 380.97 and 177.66 is: 245.16
Step by Step Solution
- Step 1: Write the proportion equation
276.08 : 380.97 = 177.66 : x - Step 2: Convert to fraction form
276.08/380.97 = 177.66/x - Step 3: Cross multiply
276.08x = 380.97 × 177.66 - Step 4: Simplify right side
276.08x = 67,683.13 - Step 5: Solve for x
x = 67,683.13/276.08 - Step 6: Final answer
x = 245.16
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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.