Finding the Fourth Proportional to 253.13, 380.77 and 230.99
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Solution
The fourth proportional to 253.13, 380.77 and 230.99 is: 347.46
Step by Step Solution
- Step 1: Write the proportion equation
253.13 : 380.77 = 230.99 : x - Step 2: Convert to fraction form
253.13/380.77 = 230.99/x - Step 3: Cross multiply
253.13x = 380.77 × 230.99 - Step 4: Simplify right side
253.13x = 87,951.58 - Step 5: Solve for x
x = 87,951.58/253.13 - Step 6: Final answer
x = 347.46
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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.