Finding the Fourth Proportional to 370,128.75, 555,197.67 and 130,249.82
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Solution
The fourth proportional to 370,128.75, 555,197.67 and 130,249.82 is: 195,376.33
Step by Step Solution
- Step 1: Write the proportion equation
370,128.75 : 555,197.67 = 130,249.82 : x - Step 2: Convert to fraction form
370,128.75/555,197.67 = 130,249.82/x - Step 3: Cross multiply
370,128.75x = 555,197.67 × 130,249.82 - Step 4: Simplify right side
370,128.75x = 72,314,396,581.92 - Step 5: Solve for x
x = 72,314,396,581.92/370,128.75 - Step 6: Final answer
x = 195,376.33
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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.