Finding the Fourth Proportional to 275,816.09, 413,715.87 and 76,148.66
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Solution
The fourth proportional to 275,816.09, 413,715.87 and 76,148.66 is: 114,220.71
Step by Step Solution
- Step 1: Write the proportion equation
275,816.09 : 413,715.87 = 76,148.66 : x - Step 2: Convert to fraction form
275,816.09/413,715.87 = 76,148.66/x - Step 3: Cross multiply
275,816.09x = 413,715.87 × 76,148.66 - Step 4: Simplify right side
275,816.09x = 31,503,909,121.23 - Step 5: Solve for x
x = 31,503,909,121.23/275,816.09 - Step 6: Final answer
x = 114,220.71
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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.