Finding the Fourth Proportional to 398,747.86, 550,136.01 and 226,648.42
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Solution
The fourth proportional to 398,747.86, 550,136.01 and 226,648.42 is: 312,697.50
Step by Step Solution
- Step 1: Write the proportion equation
398,747.86 : 550,136.01 = 226,648.42 : x - Step 2: Convert to fraction form
398,747.86/550,136.01 = 226,648.42/x - Step 3: Cross multiply
398,747.86x = 550,136.01 × 226,648.42 - Step 4: Simplify right side
398,747.86x = 124,687,457,451.60 - Step 5: Solve for x
x = 124,687,457,451.60/398,747.86 - Step 6: Final answer
x = 312,697.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.