Finding the Fourth Proportional to 150,391.34, 225,588.29 and 120,331.09
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Solution
The fourth proportional to 150,391.34, 225,588.29 and 120,331.09 is: 180,497.65
Step by Step Solution
- Step 1: Write the proportion equation
150,391.34 : 225,588.29 = 120,331.09 : x - Step 2: Convert to fraction form
150,391.34/225,588.29 = 120,331.09/x - Step 3: Cross multiply
150,391.34x = 225,588.29 × 120,331.09 - Step 4: Simplify right side
150,391.34x = 27,145,284,563.79 - Step 5: Solve for x
x = 27,145,284,563.79/150,391.34 - Step 6: Final answer
x = 180,497.65
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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.