Finding the Fourth Proportional to 253.11, 349.17 and 170.19
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Solution
The fourth proportional to 253.11, 349.17 and 170.19 is: 234.78
Step by Step Solution
- Step 1: Write the proportion equation
253.11 : 349.17 = 170.19 : x - Step 2: Convert to fraction form
253.11/349.17 = 170.19/x - Step 3: Cross multiply
253.11x = 349.17 × 170.19 - Step 4: Simplify right side
253.11x = 59,425.24 - Step 5: Solve for x
x = 59,425.24/253.11 - Step 6: Final answer
x = 234.78
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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.