Finding the Fourth Proportional to 318,209.63, 477,542.07 and 115,805.43
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Solution
The fourth proportional to 318,209.63, 477,542.07 and 115,805.43 is: 173,790.99
Step by Step Solution
- Step 1: Write the proportion equation
318,209.63 : 477,542.07 = 115,805.43 : x - Step 2: Convert to fraction form
318,209.63/477,542.07 = 115,805.43/x - Step 3: Cross multiply
318,209.63x = 477,542.07 × 115,805.43 - Step 4: Simplify right side
318,209.63x = 55,301,964,759.44 - Step 5: Solve for x
x = 55,301,964,759.44/318,209.63 - Step 6: Final answer
x = 173,790.99
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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.