Finding the Fourth Proportional to 207.36, 310.74 and 109.92
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Solution
The fourth proportional to 207.36, 310.74 and 109.92 is: 164.72
Step by Step Solution
- Step 1: Write the proportion equation
207.36 : 310.74 = 109.92 : x - Step 2: Convert to fraction form
207.36/310.74 = 109.92/x - Step 3: Cross multiply
207.36x = 310.74 × 109.92 - Step 4: Simplify right side
207.36x = 34,157.29 - Step 5: Solve for x
x = 34,157.29/207.36 - Step 6: Final answer
x = 164.72
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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.