Finding the Fourth Proportional to 207.77, 312.26 and 193.19
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Solution
The fourth proportional to 207.77, 312.26 and 193.19 is: 290.34
Step by Step Solution
- Step 1: Write the proportion equation
207.77 : 312.26 = 193.19 : x - Step 2: Convert to fraction form
207.77/312.26 = 193.19/x - Step 3: Cross multiply
207.77x = 312.26 × 193.19 - Step 4: Simplify right side
207.77x = 60,322.98 - Step 5: Solve for x
x = 60,322.98/207.77 - Step 6: Final answer
x = 290.34
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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.