Finding the Fourth Proportional to 190,698.40, 263,146.36 and 113,160.68
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Solution
The fourth proportional to 190,698.40, 263,146.36 and 113,160.68 is: 156,151.39
Step by Step Solution
- Step 1: Write the proportion equation
190,698.40 : 263,146.36 = 113,160.68 : x - Step 2: Convert to fraction form
190,698.40/263,146.36 = 113,160.68/x - Step 3: Cross multiply
190,698.40x = 263,146.36 × 113,160.68 - Step 4: Simplify right side
190,698.40x = 29,777,821,037.12 - Step 5: Solve for x
x = 29,777,821,037.12/190,698.40 - Step 6: Final answer
x = 156,151.39
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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.