Finding the Fourth Proportional to 216,647.34, 324,878.07 and 74,506.92
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Solution
The fourth proportional to 216,647.34, 324,878.07 and 74,506.92 is: 111,728.42
Step by Step Solution
- Step 1: Write the proportion equation
216,647.34 : 324,878.07 = 74,506.92 : x - Step 2: Convert to fraction form
216,647.34/324,878.07 = 74,506.92/x - Step 3: Cross multiply
216,647.34x = 324,878.07 × 74,506.92 - Step 4: Simplify right side
216,647.34x = 24,205,664,371.24 - Step 5: Solve for x
x = 24,205,664,371.24/216,647.34 - Step 6: Final answer
x = 111,728.42
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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.