Finding the Fourth Proportional to 279.24, 419.56 and 157.63
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Solution
The fourth proportional to 279.24, 419.56 and 157.63 is: 236.84
Step by Step Solution
- Step 1: Write the proportion equation
279.24 : 419.56 = 157.63 : x - Step 2: Convert to fraction form
279.24/419.56 = 157.63/x - Step 3: Cross multiply
279.24x = 419.56 × 157.63 - Step 4: Simplify right side
279.24x = 66,135.24 - Step 5: Solve for x
x = 66,135.24/279.24 - Step 6: Final answer
x = 236.84
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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.