Finding the Fourth Proportional to 253,753.84, 380,866.92 and 129,188.08
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Solution
The fourth proportional to 253,753.84, 380,866.92 and 129,188.08 is: 193,902.35
Step by Step Solution
- Step 1: Write the proportion equation
253,753.84 : 380,866.92 = 129,188.08 : x - Step 2: Convert to fraction form
253,753.84/380,866.92 = 129,188.08/x - Step 3: Cross multiply
253,753.84x = 380,866.92 × 129,188.08 - Step 4: Simplify right side
253,753.84x = 49,203,466,130.31 - Step 5: Solve for x
x = 49,203,466,130.31/253,753.84 - Step 6: Final answer
x = 193,902.35
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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.