Finding the Fourth Proportional to 212,379.54, 318,421.68 and 93,986.28
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Solution
The fourth proportional to 212,379.54, 318,421.68 and 93,986.28 is: 140,914.09
Step by Step Solution
- Step 1: Write the proportion equation
212,379.54 : 318,421.68 = 93,986.28 : x - Step 2: Convert to fraction form
212,379.54/318,421.68 = 93,986.28/x - Step 3: Cross multiply
212,379.54x = 318,421.68 × 93,986.28 - Step 4: Simplify right side
212,379.54x = 29,927,269,174.55 - Step 5: Solve for x
x = 29,927,269,174.55/212,379.54 - Step 6: Final answer
x = 140,914.09
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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.