Finding the Fourth Proportional to 190,857.40, 286,286.10 and 189,107.80
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Solution
The fourth proportional to 190,857.40, 286,286.10 and 189,107.80 is: 283,661.70
Step by Step Solution
- Step 1: Write the proportion equation
190,857.40 : 286,286.10 = 189,107.80 : x - Step 2: Convert to fraction form
190,857.40/286,286.10 = 189,107.80/x - Step 3: Cross multiply
190,857.40x = 286,286.10 × 189,107.80 - Step 4: Simplify right side
190,857.40x = 54,138,934,541.58 - Step 5: Solve for x
x = 54,138,934,541.58/190,857.40 - Step 6: Final answer
x = 283,661.70
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1.5x scale
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.