Finding the Fourth Proportional to 190,128.19, 285,472.64 and 106,052.62
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Solution
The fourth proportional to 190,128.19, 285,472.64 and 106,052.62 is: 159,235.31
Step by Step Solution
- Step 1: Write the proportion equation
190,128.19 : 285,472.64 = 106,052.62 : x - Step 2: Convert to fraction form
190,128.19/285,472.64 = 106,052.62/x - Step 3: Cross multiply
190,128.19x = 285,472.64 × 106,052.62 - Step 4: Simplify right side
190,128.19x = 30,275,120,961.77 - Step 5: Solve for x
x = 30,275,120,961.77/190,128.19 - Step 6: Final answer
x = 159,235.31
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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.