Finding the Fourth Proportional to 178.91, 246.98 and 135.26
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Solution
The fourth proportional to 178.91, 246.98 and 135.26 is: 186.72
Step by Step Solution
- Step 1: Write the proportion equation
178.91 : 246.98 = 135.26 : x - Step 2: Convert to fraction form
178.91/246.98 = 135.26/x - Step 3: Cross multiply
178.91x = 246.98 × 135.26 - Step 4: Simplify right side
178.91x = 33,406.51 - Step 5: Solve for x
x = 33,406.51/178.91 - Step 6: Final answer
x = 186.72
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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.