Finding the Fourth Proportional to 178.62, 246.52 and 108.68
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Solution
The fourth proportional to 178.62, 246.52 and 108.68 is: 149.99
Step by Step Solution
- Step 1: Write the proportion equation
178.62 : 246.52 = 108.68 : x - Step 2: Convert to fraction form
178.62/246.52 = 108.68/x - Step 3: Cross multiply
178.62x = 246.52 × 108.68 - Step 4: Simplify right side
178.62x = 26,791.79 - Step 5: Solve for x
x = 26,791.79/178.62 - Step 6: Final answer
x = 149.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.