Finding the Fourth Proportional to 146.46, 202.32 and 129.99
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Solution
The fourth proportional to 146.46, 202.32 and 129.99 is: 179.57
Step by Step Solution
- Step 1: Write the proportion equation
146.46 : 202.32 = 129.99 : x - Step 2: Convert to fraction form
146.46/202.32 = 129.99/x - Step 3: Cross multiply
146.46x = 202.32 × 129.99 - Step 4: Simplify right side
146.46x = 26,299.58 - Step 5: Solve for x
x = 26,299.58/146.46 - Step 6: Final answer
x = 179.57
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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.