Finding the Fourth Proportional to 385,290.56, 578,235.36 and 252,133.76
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Solution
The fourth proportional to 385,290.56, 578,235.36 and 252,133.76 is: 378,396.65
Step by Step Solution
- Step 1: Write the proportion equation
385,290.56 : 578,235.36 = 252,133.76 : x - Step 2: Convert to fraction form
385,290.56/578,235.36 = 252,133.76/x - Step 3: Cross multiply
385,290.56x = 578,235.36 × 252,133.76 - Step 4: Simplify right side
385,290.56x = 145,792,655,481.75 - Step 5: Solve for x
x = 145,792,655,481.75/385,290.56 - Step 6: Final answer
x = 378,396.65
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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.