Finding the Fourth Proportional to 399,486.02, 599,231.28 and 133,245.80
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Solution
The fourth proportional to 399,486.02, 599,231.28 and 133,245.80 is: 199,869.45
Step by Step Solution
- Step 1: Write the proportion equation
399,486.02 : 599,231.28 = 133,245.80 : x - Step 2: Convert to fraction form
399,486.02/599,231.28 = 133,245.80/x - Step 3: Cross multiply
399,486.02x = 599,231.28 × 133,245.80 - Step 4: Simplify right side
399,486.02x = 79,845,048,292.47 - Step 5: Solve for x
x = 79,845,048,292.47/399,486.02 - Step 6: Final answer
x = 199,869.45
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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.