Finding the Fourth Proportional to 140.73, 210.99 and 63.66
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Solution
The fourth proportional to 140.73, 210.99 and 63.66 is: 95.44
Step by Step Solution
- Step 1: Write the proportion equation
140.73 : 210.99 = 63.66 : x - Step 2: Convert to fraction form
140.73/210.99 = 63.66/x - Step 3: Cross multiply
140.73x = 210.99 × 63.66 - Step 4: Simplify right side
140.73x = 13,431.62 - Step 5: Solve for x
x = 13,431.62/140.73 - Step 6: Final answer
x = 95.44
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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.