Finding the Fourth Proportional to 202.13, 278.84 and 132.18
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Solution
The fourth proportional to 202.13, 278.84 and 132.18 is: 182.34
Step by Step Solution
- Step 1: Write the proportion equation
202.13 : 278.84 = 132.18 : x - Step 2: Convert to fraction form
202.13/278.84 = 132.18/x - Step 3: Cross multiply
202.13x = 278.84 × 132.18 - Step 4: Simplify right side
202.13x = 36,857.07 - Step 5: Solve for x
x = 36,857.07/202.13 - Step 6: Final answer
x = 182.34
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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.