Finding the Fourth Proportional to 178.91, 246.83 and 107.99
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Solution
The fourth proportional to 178.91, 246.83 and 107.99 is: 148.98
Step by Step Solution
- Step 1: Write the proportion equation
178.91 : 246.83 = 107.99 : x - Step 2: Convert to fraction form
178.91/246.83 = 107.99/x - Step 3: Cross multiply
178.91x = 246.83 × 107.99 - Step 4: Simplify right side
178.91x = 26,653.40 - Step 5: Solve for x
x = 26,653.40/178.91 - Step 6: Final answer
x = 148.98
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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.