Finding the Fourth Proportional to 189,067.80, 283,601.70 and 76,801.80
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Solution
The fourth proportional to 189,067.80, 283,601.70 and 76,801.80 is: 115,202.70
Step by Step Solution
- Step 1: Write the proportion equation
189,067.80 : 283,601.70 = 76,801.80 : x - Step 2: Convert to fraction form
189,067.80/283,601.70 = 76,801.80/x - Step 3: Cross multiply
189,067.80x = 283,601.70 × 76,801.80 - Step 4: Simplify right side
189,067.80x = 21,781,121,043.06 - Step 5: Solve for x
x = 21,781,121,043.06/189,067.80 - Step 6: Final answer
x = 115,202.70
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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.