Finding the Fourth Proportional to 393.96, 591.14 and 177.49
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Solution
The fourth proportional to 393.96, 591.14 and 177.49 is: 266.33
Step by Step Solution
- Step 1: Write the proportion equation
393.96 : 591.14 = 177.49 : x - Step 2: Convert to fraction form
393.96/591.14 = 177.49/x - Step 3: Cross multiply
393.96x = 591.14 × 177.49 - Step 4: Simplify right side
393.96x = 104,921.44 - Step 5: Solve for x
x = 104,921.44/393.96 - Step 6: Final answer
x = 266.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.