Finding the Fourth Proportional to 424.91, 586.14 and 306.75
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Solution
The fourth proportional to 424.91, 586.14 and 306.75 is: 423.14
Step by Step Solution
- Step 1: Write the proportion equation
424.91 : 586.14 = 306.75 : x - Step 2: Convert to fraction form
424.91/586.14 = 306.75/x - Step 3: Cross multiply
424.91x = 586.14 × 306.75 - Step 4: Simplify right side
424.91x = 179,799.49 - Step 5: Solve for x
x = 179,799.49/424.91 - Step 6: Final answer
x = 423.14
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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.