Finding the Fourth Proportional to 253,832.03, 380,649.63 and 135,438.79
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Solution
The fourth proportional to 253,832.03, 380,649.63 and 135,438.79 is: 203,105.67
Step by Step Solution
- Step 1: Write the proportion equation
253,832.03 : 380,649.63 = 135,438.79 : x - Step 2: Convert to fraction form
253,832.03/380,649.63 = 135,438.79/x - Step 3: Cross multiply
253,832.03x = 380,649.63 × 135,438.79 - Step 4: Simplify right side
253,832.03x = 51,554,725,301.15 - Step 5: Solve for x
x = 51,554,725,301.15/253,832.03 - Step 6: Final answer
x = 203,105.67
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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.