Finding the Fourth Proportional to 268,716.99, 403,010.64 and 79,125.81
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Solution
The fourth proportional to 268,716.99, 403,010.64 and 79,125.81 is: 118,669.62
Step by Step Solution
- Step 1: Write the proportion equation
268,716.99 : 403,010.64 = 79,125.81 : x - Step 2: Convert to fraction form
268,716.99/403,010.64 = 79,125.81/x - Step 3: Cross multiply
268,716.99x = 403,010.64 × 79,125.81 - Step 4: Simplify right side
268,716.99x = 31,888,544,084.26 - Step 5: Solve for x
x = 31,888,544,084.26/268,716.99 - Step 6: Final answer
x = 118,669.62
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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.