Finding the Fourth Proportional to 178.80, 246.60 and 135.24
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Solution
The fourth proportional to 178.80, 246.60 and 135.24 is: 186.52
Step by Step Solution
- Step 1: Write the proportion equation
178.80 : 246.60 = 135.24 : x - Step 2: Convert to fraction form
178.80/246.60 = 135.24/x - Step 3: Cross multiply
178.80x = 246.60 × 135.24 - Step 4: Simplify right side
178.80x = 33,350.18 - Step 5: Solve for x
x = 33,350.18/178.80 - Step 6: Final answer
x = 186.52
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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.