Finding the Fourth Proportional to 202.58, 279.62 and 115.26
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Solution
The fourth proportional to 202.58, 279.62 and 115.26 is: 159.09
Step by Step Solution
- Step 1: Write the proportion equation
202.58 : 279.62 = 115.26 : x - Step 2: Convert to fraction form
202.58/279.62 = 115.26/x - Step 3: Cross multiply
202.58x = 279.62 × 115.26 - Step 4: Simplify right side
202.58x = 32,229.00 - Step 5: Solve for x
x = 32,229.00/202.58 - Step 6: Final answer
x = 159.09
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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.