Finding the Fourth Proportional to 189.08, 283.56 and 67.31
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Solution
The fourth proportional to 189.08, 283.56 and 67.31 is: 100.94
Step by Step Solution
- Step 1: Write the proportion equation
189.08 : 283.56 = 67.31 : x - Step 2: Convert to fraction form
189.08/283.56 = 67.31/x - Step 3: Cross multiply
189.08x = 283.56 × 67.31 - Step 4: Simplify right side
189.08x = 19,086.42 - Step 5: Solve for x
x = 19,086.42/189.08 - Step 6: Final answer
x = 100.94
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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.