Finding the Fourth Proportional to 254.24, 381.30 and 69.14
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Solution
The fourth proportional to 254.24, 381.30 and 69.14 is: 103.69
Step by Step Solution
- Step 1: Write the proportion equation
254.24 : 381.30 = 69.14 : x - Step 2: Convert to fraction form
254.24/381.30 = 69.14/x - Step 3: Cross multiply
254.24x = 381.30 × 69.14 - Step 4: Simplify right side
254.24x = 26,363.08 - Step 5: Solve for x
x = 26,363.08/254.24 - Step 6: Final answer
x = 103.69
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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.