Finding the Fourth Proportional to 285,591.62, 428,387.43 and 145,448.66
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Solution
The fourth proportional to 285,591.62, 428,387.43 and 145,448.66 is: 218,172.99
Step by Step Solution
- Step 1: Write the proportion equation
285,591.62 : 428,387.43 = 145,448.66 : x - Step 2: Convert to fraction form
285,591.62/428,387.43 = 145,448.66/x - Step 3: Cross multiply
285,591.62x = 428,387.43 × 145,448.66 - Step 4: Simplify right side
285,591.62x = 62,308,379,270.74 - Step 5: Solve for x
x = 62,308,379,270.74/285,591.62 - Step 6: Final answer
x = 218,172.99
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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.