Finding the Fourth Proportional to 207.44, 286.27 and 112.91
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Solution
The fourth proportional to 207.44, 286.27 and 112.91 is: 155.82
Step by Step Solution
- Step 1: Write the proportion equation
207.44 : 286.27 = 112.91 : x - Step 2: Convert to fraction form
207.44/286.27 = 112.91/x - Step 3: Cross multiply
207.44x = 286.27 × 112.91 - Step 4: Simplify right side
207.44x = 32,323.12 - Step 5: Solve for x
x = 32,323.12/207.44 - Step 6: Final answer
x = 155.82
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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.