Finding the Fourth Proportional to 372,406.75, 513,923.75 and 202,642.09
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Solution
The fourth proportional to 372,406.75, 513,923.75 and 202,642.09 is: 279,647.41
Step by Step Solution
- Step 1: Write the proportion equation
372,406.75 : 513,923.75 = 202,642.09 : x - Step 2: Convert to fraction form
372,406.75/513,923.75 = 202,642.09/x - Step 3: Cross multiply
372,406.75x = 513,923.75 × 202,642.09 - Step 4: Simplify right side
372,406.75x = 104,142,582,800.64 - Step 5: Solve for x
x = 104,142,582,800.64/372,406.75 - Step 6: Final answer
x = 279,647.41
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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.