Finding the Fourth Proportional to 202,971.87, 280,101.71 and 112,334.09
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Solution
The fourth proportional to 202,971.87, 280,101.71 and 112,334.09 is: 155,021.33
Step by Step Solution
- Step 1: Write the proportion equation
202,971.87 : 280,101.71 = 112,334.09 : x - Step 2: Convert to fraction form
202,971.87/280,101.71 = 112,334.09/x - Step 3: Cross multiply
202,971.87x = 280,101.71 × 112,334.09 - Step 4: Simplify right side
202,971.87x = 31,464,969,580.62 - Step 5: Solve for x
x = 31,464,969,580.62/202,971.87 - Step 6: Final answer
x = 155,021.33
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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.