Finding the Fourth Proportional to 231,101.97, 318,922.83 and 135,610.26
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Solution
The fourth proportional to 231,101.97, 318,922.83 and 135,610.26 is: 187,143.40
Step by Step Solution
- Step 1: Write the proportion equation
231,101.97 : 318,922.83 = 135,610.26 : x - Step 2: Convert to fraction form
231,101.97/318,922.83 = 135,610.26/x - Step 3: Cross multiply
231,101.97x = 318,922.83 × 135,610.26 - Step 4: Simplify right side
231,101.97x = 43,249,207,896.24 - Step 5: Solve for x
x = 43,249,207,896.24/231,101.97 - Step 6: Final answer
x = 187,143.40
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1.5x scale
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.