Finding the Fourth Proportional to 199,379.86, 298,982.30 and 74,633.38
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Solution
The fourth proportional to 199,379.86, 298,982.30 and 74,633.38 is: 111,917.32
Step by Step Solution
- Step 1: Write the proportion equation
199,379.86 : 298,982.30 = 74,633.38 : x - Step 2: Convert to fraction form
199,379.86/298,982.30 = 74,633.38/x - Step 3: Cross multiply
199,379.86x = 298,982.30 × 74,633.38 - Step 4: Simplify right side
199,379.86x = 22,314,059,609.17 - Step 5: Solve for x
x = 22,314,059,609.17/199,379.86 - Step 6: Final answer
x = 111,917.32
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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.