Finding the Fourth Proportional to 178.73, 246.68 and 113.23
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Solution
The fourth proportional to 178.73, 246.68 and 113.23 is: 156.28
Step by Step Solution
- Step 1: Write the proportion equation
178.73 : 246.68 = 113.23 : x - Step 2: Convert to fraction form
178.73/246.68 = 113.23/x - Step 3: Cross multiply
178.73x = 246.68 × 113.23 - Step 4: Simplify right side
178.73x = 27,931.58 - Step 5: Solve for x
x = 27,931.58/178.73 - Step 6: Final answer
x = 156.28
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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.