Finding the Fourth Proportional to 146.99, 202.77 and 84.80
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Solution
The fourth proportional to 146.99, 202.77 and 84.80 is: 116.98
Step by Step Solution
- Step 1: Write the proportion equation
146.99 : 202.77 = 84.80 : x - Step 2: Convert to fraction form
146.99/202.77 = 84.80/x - Step 3: Cross multiply
146.99x = 202.77 × 84.80 - Step 4: Simplify right side
146.99x = 17,193.88 - Step 5: Solve for x
x = 17,193.88/146.99 - Step 6: Final answer
x = 116.98
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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.