Finding the Fourth Proportional to 243,879.09, 365,781.72 and 66,400.09
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Solution
The fourth proportional to 243,879.09, 365,781.72 and 66,400.09 is: 99,590.08
Step by Step Solution
- Step 1: Write the proportion equation
243,879.09 : 365,781.72 = 66,400.09 : x - Step 2: Convert to fraction form
243,879.09/365,781.72 = 66,400.09/x - Step 3: Cross multiply
243,879.09x = 365,781.72 × 66,400.09 - Step 4: Simplify right side
243,879.09x = 24,287,938,462.90 - Step 5: Solve for x
x = 24,287,938,462.90/243,879.09 - Step 6: Final answer
x = 99,590.08
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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.