Finding the Fourth Proportional to 202.13, 302.68 and 141.13
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Solution
The fourth proportional to 202.13, 302.68 and 141.13 is: 211.34
Step by Step Solution
- Step 1: Write the proportion equation
202.13 : 302.68 = 141.13 : x - Step 2: Convert to fraction form
202.13/302.68 = 141.13/x - Step 3: Cross multiply
202.13x = 302.68 × 141.13 - Step 4: Simplify right side
202.13x = 42,717.23 - Step 5: Solve for x
x = 42,717.23/202.13 - Step 6: Final answer
x = 211.34
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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.