Finding the Fourth Proportional to 212.00, 318.52 and 134.99
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Solution
The fourth proportional to 212.00, 318.52 and 134.99 is: 202.82
Step by Step Solution
- Step 1: Write the proportion equation
212.00 : 318.52 = 134.99 : x - Step 2: Convert to fraction form
212.00/318.52 = 134.99/x - Step 3: Cross multiply
212.00x = 318.52 × 134.99 - Step 4: Simplify right side
212.00x = 42,996.79 - Step 5: Solve for x
x = 42,996.79/212.00 - Step 6: Final answer
x = 202.82
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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.