Finding the Fourth Proportional to 202.32, 279.20 and 114.99
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Solution
The fourth proportional to 202.32, 279.20 and 114.99 is: 158.68
Step by Step Solution
- Step 1: Write the proportion equation
202.32 : 279.20 = 114.99 : x - Step 2: Convert to fraction form
202.32/279.20 = 114.99/x - Step 3: Cross multiply
202.32x = 279.20 × 114.99 - Step 4: Simplify right side
202.32x = 32,104.63 - Step 5: Solve for x
x = 32,104.63/202.32 - Step 6: Final answer
x = 158.68
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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.