Finding the Fourth Proportional to 146.74, 219.74 and 143.99
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Solution
The fourth proportional to 146.74, 219.74 and 143.99 is: 215.62
Step by Step Solution
- Step 1: Write the proportion equation
146.74 : 219.74 = 143.99 : x - Step 2: Convert to fraction form
146.74/219.74 = 143.99/x - Step 3: Cross multiply
146.74x = 219.74 × 143.99 - Step 4: Simplify right side
146.74x = 31,640.19 - Step 5: Solve for x
x = 31,640.19/146.74 - Step 6: Final answer
x = 215.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.