Finding the Fourth Proportional to 385,727.67, 578,369.84 and 205,591.23
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Solution
The fourth proportional to 385,727.67, 578,369.84 and 205,591.23 is: 308,268.70
Step by Step Solution
- Step 1: Write the proportion equation
385,727.67 : 578,369.84 = 205,591.23 : x - Step 2: Convert to fraction form
385,727.67/578,369.84 = 205,591.23/x - Step 3: Cross multiply
385,727.67x = 578,369.84 × 205,591.23 - Step 4: Simplify right side
385,727.67x = 118,907,765,772.55 - Step 5: Solve for x
x = 118,907,765,772.55/385,727.67 - Step 6: Final answer
x = 308,268.70
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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.