Finding the Fourth Proportional to 178.68, 245.99 and 134.94
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Solution
The fourth proportional to 178.68, 245.99 and 134.94 is: 185.77
Step by Step Solution
- Step 1: Write the proportion equation
178.68 : 245.99 = 134.94 : x - Step 2: Convert to fraction form
178.68/245.99 = 134.94/x - Step 3: Cross multiply
178.68x = 245.99 × 134.94 - Step 4: Simplify right side
178.68x = 33,194.23 - Step 5: Solve for x
x = 33,194.23/178.68 - Step 6: Final answer
x = 185.77
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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.