Finding the Fourth Proportional to 279.36, 385.54 and 168.82
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Solution
The fourth proportional to 279.36, 385.54 and 168.82 is: 232.99
Step by Step Solution
- Step 1: Write the proportion equation
279.36 : 385.54 = 168.82 : x - Step 2: Convert to fraction form
279.36/385.54 = 168.82/x - Step 3: Cross multiply
279.36x = 385.54 × 168.82 - Step 4: Simplify right side
279.36x = 65,086.86 - Step 5: Solve for x
x = 65,086.86/279.36 - Step 6: Final answer
x = 232.99
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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.