Finding the Fourth Proportional to 253,756.84, 380,871.42 and 129,191.08
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Solution
The fourth proportional to 253,756.84, 380,871.42 and 129,191.08 is: 193,906.85
Step by Step Solution
- Step 1: Write the proportion equation
253,756.84 : 380,871.42 = 129,191.08 : x - Step 2: Convert to fraction form
253,756.84/380,871.42 = 129,191.08/x - Step 3: Cross multiply
253,756.84x = 380,871.42 × 129,191.08 - Step 4: Simplify right side
253,756.84x = 49,205,190,090.93 - Step 5: Solve for x
x = 49,205,190,090.93/253,756.84 - Step 6: Final answer
x = 193,906.85
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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.