Finding the Fourth Proportional to 140.27, 210.83 and 92.48
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Solution
The fourth proportional to 140.27, 210.83 and 92.48 is: 138.99
Step by Step Solution
- Step 1: Write the proportion equation
140.27 : 210.83 = 92.48 : x - Step 2: Convert to fraction form
140.27/210.83 = 92.48/x - Step 3: Cross multiply
140.27x = 210.83 × 92.48 - Step 4: Simplify right side
140.27x = 19,496.04 - Step 5: Solve for x
x = 19,496.04/140.27 - Step 6: Final answer
x = 138.99
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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.