Finding the Fourth Proportional to 207.63, 286.45 and 133.96
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Solution
The fourth proportional to 207.63, 286.45 and 133.96 is: 184.81
Step by Step Solution
- Step 1: Write the proportion equation
207.63 : 286.45 = 133.96 : x - Step 2: Convert to fraction form
207.63/286.45 = 133.96/x - Step 3: Cross multiply
207.63x = 286.45 × 133.96 - Step 4: Simplify right side
207.63x = 38,372.84 - Step 5: Solve for x
x = 38,372.84/207.63 - Step 6: Final answer
x = 184.81
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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.