Finding the Fourth Proportional to 141.11, 210.09 and 140.44
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Solution
The fourth proportional to 141.11, 210.09 and 140.44 is: 209.08
Step by Step Solution
- Step 1: Write the proportion equation
141.11 : 210.09 = 140.44 : x - Step 2: Convert to fraction form
141.11/210.09 = 140.44/x - Step 3: Cross multiply
141.11x = 210.09 × 140.44 - Step 4: Simplify right side
141.11x = 29,503.99 - Step 5: Solve for x
x = 29,503.99/141.11 - Step 6: Final answer
x = 209.08
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.