Finding the Fourth Proportional to 416.15, 624.23 and 107.99
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Solution
The fourth proportional to 416.15, 624.23 and 107.99 is: 161.98
Step by Step Solution
- Step 1: Write the proportion equation
416.15 : 624.23 = 107.99 : x - Step 2: Convert to fraction form
416.15/624.23 = 107.99/x - Step 3: Cross multiply
416.15x = 624.23 × 107.99 - Step 4: Simplify right side
416.15x = 67,407.34 - Step 5: Solve for x
x = 67,407.34/416.15 - Step 6: Final answer
x = 161.98
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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.