Finding the Fourth Proportional to 281.96, 389.14 and 177.08
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Solution
The fourth proportional to 281.96, 389.14 and 177.08 is: 244.39
Step by Step Solution
- Step 1: Write the proportion equation
281.96 : 389.14 = 177.08 : x - Step 2: Convert to fraction form
281.96/389.14 = 177.08/x - Step 3: Cross multiply
281.96x = 389.14 × 177.08 - Step 4: Simplify right side
281.96x = 68,908.91 - Step 5: Solve for x
x = 68,908.91/281.96 - Step 6: Final answer
x = 244.39
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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.