Finding the Fourth Proportional to 416.65, 624.99 and 108.49
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Solution
The fourth proportional to 416.65, 624.99 and 108.49 is: 162.73
Step by Step Solution
- Step 1: Write the proportion equation
416.65 : 624.99 = 108.49 : x - Step 2: Convert to fraction form
416.65/624.99 = 108.49/x - Step 3: Cross multiply
416.65x = 624.99 × 108.49 - Step 4: Simplify right side
416.65x = 67,803.06 - Step 5: Solve for x
x = 67,803.06/416.65 - Step 6: Final answer
x = 162.73
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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.