Finding the Fourth Proportional to 146.30, 219.47 and 146.09
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Solution
The fourth proportional to 146.30, 219.47 and 146.09 is: 219.15
Step by Step Solution
- Step 1: Write the proportion equation
146.30 : 219.47 = 146.09 : x - Step 2: Convert to fraction form
146.30/219.47 = 146.09/x - Step 3: Cross multiply
146.30x = 219.47 × 146.09 - Step 4: Simplify right side
146.30x = 32,060.54 - Step 5: Solve for x
x = 32,060.54/146.30 - Step 6: Final answer
x = 219.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.