Finding the Fourth Proportional to 207.55, 286.38 and 133.83
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Solution
The fourth proportional to 207.55, 286.38 and 133.83 is: 184.66
Step by Step Solution
- Step 1: Write the proportion equation
207.55 : 286.38 = 133.83 : x - Step 2: Convert to fraction form
207.55/286.38 = 133.83/x - Step 3: Cross multiply
207.55x = 286.38 × 133.83 - Step 4: Simplify right side
207.55x = 38,326.24 - Step 5: Solve for x
x = 38,326.24/207.55 - Step 6: Final answer
x = 184.66
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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.