Finding the Fourth Proportional to 207.79, 286.77 and 132.12
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Solution
The fourth proportional to 207.79, 286.77 and 132.12 is: 182.34
Step by Step Solution
- Step 1: Write the proportion equation
207.79 : 286.77 = 132.12 : x - Step 2: Convert to fraction form
207.79/286.77 = 132.12/x - Step 3: Cross multiply
207.79x = 286.77 × 132.12 - Step 4: Simplify right side
207.79x = 37,888.05 - Step 5: Solve for x
x = 37,888.05/207.79 - Step 6: Final answer
x = 182.34
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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.