Finding the Fourth Proportional to 415.10, 622.62 and 154.99
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Solution
The fourth proportional to 415.10, 622.62 and 154.99 is: 232.47
Step by Step Solution
- Step 1: Write the proportion equation
415.10 : 622.62 = 154.99 : x - Step 2: Convert to fraction form
415.10/622.62 = 154.99/x - Step 3: Cross multiply
415.10x = 622.62 × 154.99 - Step 4: Simplify right side
415.10x = 96,496.76 - Step 5: Solve for x
x = 96,496.76/415.10 - Step 6: Final answer
x = 232.47
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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.