Finding the Fourth Proportional to 202.60, 279.58 and 115.28
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Solution
The fourth proportional to 202.60, 279.58 and 115.28 is: 159.08
Step by Step Solution
- Step 1: Write the proportion equation
202.60 : 279.58 = 115.28 : x - Step 2: Convert to fraction form
202.60/279.58 = 115.28/x - Step 3: Cross multiply
202.60x = 279.58 × 115.28 - Step 4: Simplify right side
202.60x = 32,229.98 - Step 5: Solve for x
x = 32,229.98/202.60 - Step 6: Final answer
x = 159.08
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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.