Finding the Fourth Proportional to 208,589.42, 312,698.57 and 75,440.07
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Solution
The fourth proportional to 208,589.42, 312,698.57 and 75,440.07 is: 113,092.99
Step by Step Solution
- Step 1: Write the proportion equation
208,589.42 : 312,698.57 = 75,440.07 : x - Step 2: Convert to fraction form
208,589.42/312,698.57 = 75,440.07/x - Step 3: Cross multiply
208,589.42x = 312,698.57 × 75,440.07 - Step 4: Simplify right side
208,589.42x = 23,590,001,632.50 - Step 5: Solve for x
x = 23,590,001,632.50/208,589.42 - Step 6: Final answer
x = 113,092.99
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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.