Finding the Fourth Proportional to 146.19, 219.01 and 91.19
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Solution
The fourth proportional to 146.19, 219.01 and 91.19 is: 136.61
Step by Step Solution
- Step 1: Write the proportion equation
146.19 : 219.01 = 91.19 : x - Step 2: Convert to fraction form
146.19/219.01 = 91.19/x - Step 3: Cross multiply
146.19x = 219.01 × 91.19 - Step 4: Simplify right side
146.19x = 19,970.97 - Step 5: Solve for x
x = 19,970.97/146.19 - Step 6: Final answer
x = 136.61
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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.