Finding the Fourth Proportional to 306.30, 458.62 and 252.84
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Solution
The fourth proportional to 306.30, 458.62 and 252.84 is: 378.57
Step by Step Solution
- Step 1: Write the proportion equation
306.30 : 458.62 = 252.84 : x - Step 2: Convert to fraction form
306.30/458.62 = 252.84/x - Step 3: Cross multiply
306.30x = 458.62 × 252.84 - Step 4: Simplify right side
306.30x = 115,957.48 - Step 5: Solve for x
x = 115,957.48/306.30 - Step 6: Final answer
x = 378.57
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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.