Finding the Fourth Proportional to 231,106.97, 318,929.73 and 135,615.26
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Solution
The fourth proportional to 231,106.97, 318,929.73 and 135,615.26 is: 187,150.30
Step by Step Solution
- Step 1: Write the proportion equation
231,106.97 : 318,929.73 = 135,615.26 : x - Step 2: Convert to fraction form
231,106.97/318,929.73 = 135,615.26/x - Step 3: Cross multiply
231,106.97x = 318,929.73 × 135,615.26 - Step 4: Simplify right side
231,106.97x = 43,251,738,255.68 - Step 5: Solve for x
x = 43,251,738,255.68/231,106.97 - Step 6: Final answer
x = 187,150.30
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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.