Finding the Fourth Proportional to 442.70, 663.18 and 236.99
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Solution
The fourth proportional to 442.70, 663.18 and 236.99 is: 355.02
Step by Step Solution
- Step 1: Write the proportion equation
442.70 : 663.18 = 236.99 : x - Step 2: Convert to fraction form
442.70/663.18 = 236.99/x - Step 3: Cross multiply
442.70x = 663.18 × 236.99 - Step 4: Simplify right side
442.70x = 157,167.03 - Step 5: Solve for x
x = 157,167.03/442.70 - Step 6: Final answer
x = 355.02
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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.