Finding the Fourth Proportional to 210.92, 290.99 and 132.21
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Solution
The fourth proportional to 210.92, 290.99 and 132.21 is: 182.40
Step by Step Solution
- Step 1: Write the proportion equation
210.92 : 290.99 = 132.21 : x - Step 2: Convert to fraction form
210.92/290.99 = 132.21/x - Step 3: Cross multiply
210.92x = 290.99 × 132.21 - Step 4: Simplify right side
210.92x = 38,471.13 - Step 5: Solve for x
x = 38,471.13/210.92 - Step 6: Final answer
x = 182.40
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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.