Finding the Fourth Proportional to 207.36, 310.79 and 115.93
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Solution
The fourth proportional to 207.36, 310.79 and 115.93 is: 173.76
Step by Step Solution
- Step 1: Write the proportion equation
207.36 : 310.79 = 115.93 : x - Step 2: Convert to fraction form
207.36/310.79 = 115.93/x - Step 3: Cross multiply
207.36x = 310.79 × 115.93 - Step 4: Simplify right side
207.36x = 36,029.91 - Step 5: Solve for x
x = 36,029.91/207.36 - Step 6: Final answer
x = 173.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.