Finding the Fourth Proportional to 424.76, 584.68 and 374.79
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Solution
The fourth proportional to 424.76, 584.68 and 374.79 is: 515.90
Step by Step Solution
- Step 1: Write the proportion equation
424.76 : 584.68 = 374.79 : x - Step 2: Convert to fraction form
424.76/584.68 = 374.79/x - Step 3: Cross multiply
424.76x = 584.68 × 374.79 - Step 4: Simplify right side
424.76x = 219,132.24 - Step 5: Solve for x
x = 219,132.24/424.76 - Step 6: Final answer
x = 515.90
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Find fourth proportional to 212.38, 292.34 and 187.39
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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.