Finding the Fourth Proportional to 423.26, 634.99 and 149.37
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Solution
The fourth proportional to 423.26, 634.99 and 149.37 is: 224.09
Step by Step Solution
- Step 1: Write the proportion equation
423.26 : 634.99 = 149.37 : x - Step 2: Convert to fraction form
423.26/634.99 = 149.37/x - Step 3: Cross multiply
423.26x = 634.99 × 149.37 - Step 4: Simplify right side
423.26x = 94,848.46 - Step 5: Solve for x
x = 94,848.46/423.26 - Step 6: Final answer
x = 224.09
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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.