Finding the Fourth Proportional to 202.29, 279.17 and 114.99
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Solution
The fourth proportional to 202.29, 279.17 and 114.99 is: 158.69
Step by Step Solution
- Step 1: Write the proportion equation
202.29 : 279.17 = 114.99 : x - Step 2: Convert to fraction form
202.29/279.17 = 114.99/x - Step 3: Cross multiply
202.29x = 279.17 × 114.99 - Step 4: Simplify right side
202.29x = 32,101.76 - Step 5: Solve for x
x = 32,101.76/202.29 - Step 6: Final answer
x = 158.69
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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.