Finding the Fourth Proportional to 253,966.09, 350,471.34 and 139,242.84
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Solution
The fourth proportional to 253,966.09, 350,471.34 and 139,242.84 is: 192,154.10
Step by Step Solution
- Step 1: Write the proportion equation
253,966.09 : 350,471.34 = 139,242.84 : x - Step 2: Convert to fraction form
253,966.09/350,471.34 = 139,242.84/x - Step 3: Cross multiply
253,966.09x = 350,471.34 × 139,242.84 - Step 4: Simplify right side
253,966.09x = 48,800,624,720.21 - Step 5: Solve for x
x = 48,800,624,720.21/253,966.09 - Step 6: Final answer
x = 192,154.10
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.