Finding the Fourth Proportional to 416.14, 622.76 and 415.19
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Solution
The fourth proportional to 416.14, 622.76 and 415.19 is: 621.34
Step by Step Solution
- Step 1: Write the proportion equation
416.14 : 622.76 = 415.19 : x - Step 2: Convert to fraction form
416.14/622.76 = 415.19/x - Step 3: Cross multiply
416.14x = 622.76 × 415.19 - Step 4: Simplify right side
416.14x = 258,563.21 - Step 5: Solve for x
x = 258,563.21/416.14 - Step 6: Final answer
x = 621.34
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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.