Finding the Fourth Proportional to 302.81, 454.26 and 107.79
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Solution
The fourth proportional to 302.81, 454.26 and 107.79 is: 161.70
Step by Step Solution
- Step 1: Write the proportion equation
302.81 : 454.26 = 107.79 : x - Step 2: Convert to fraction form
302.81/454.26 = 107.79/x - Step 3: Cross multiply
302.81x = 454.26 × 107.79 - Step 4: Simplify right side
302.81x = 48,964.69 - Step 5: Solve for x
x = 48,964.69/302.81 - Step 6: Final answer
x = 161.70
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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.